./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_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_array_list_init_static_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 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:27:41,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:27:41,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:27:41,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:27:41,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:27:41,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:27:41,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:27:41,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:27:41,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:27:41,310 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:27:41,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:27:41,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:27:41,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:27:41,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:27:41,311 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:27:41,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:27:41,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:27:41,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:27:41,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:27:41,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:27:41,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:41,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:27:41,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:27:41,314 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 -> 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa [2025-02-08 01:27:41,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:27:41,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:27:41,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:27:41,559 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:27:41,559 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:27:41,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2025-02-08 01:27:42,657 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb2f18a4/d92a340d19aa4459950c16ec8506e7bb/FLAGfb9b2c337 [2025-02-08 01:27:43,050 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:27:43,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2025-02-08 01:27:43,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb2f18a4/d92a340d19aa4459950c16ec8506e7bb/FLAGfb9b2c337 [2025-02-08 01:27:43,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aeb2f18a4/d92a340d19aa4459950c16ec8506e7bb [2025-02-08 01:27:43,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:27:43,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:27:43,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:43,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:27:43,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:27:43,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:43" (1/1) ... [2025-02-08 01:27:43,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c65b47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:43, skipping insertion in model container [2025-02-08 01:27:43,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:43" (1/1) ... [2025-02-08 01:27:43,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:27:43,355 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2025-02-08 01:27:43,367 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2025-02-08 01:27:43,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:43,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:44,102 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:27:44,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2025-02-08 01:27:44,114 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2025-02-08 01:27:44,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,176 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,177 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,177 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,177 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,248 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:44,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:44,383 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:27:44,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44 WrapperNode [2025-02-08 01:27:44,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:44,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:44,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:27:44,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:27:44,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,455 INFO L138 Inliner]: procedures = 670, calls = 1248, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 162 [2025-02-08 01:27:44,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:44,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:27:44,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:27:44,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:27:44,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,476 INFO L175 MemorySlicer]: Split 45 memory accesses to 5 slices as follows [2, 5, 6, 28, 4]. 62 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 0, 6, 0]. The 7 writes are split as follows [0, 0, 2, 5, 0]. [2025-02-08 01:27:44,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:27:44,498 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:27:44,498 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:27:44,498 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:27:44,499 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (1/1) ... [2025-02-08 01:27:44,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:44,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:27:44,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:27:44,552 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:27:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:27:44,552 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:27:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:27:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:27:44,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:27:44,554 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:27:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:27:44,766 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:27:44,768 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:27:44,820 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:27:44,861 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:27:44,874 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:27:44,894 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:27:44,896 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:27:45,044 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-02-08 01:27:45,044 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:27:45,054 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:27:45,054 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:27:45,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:45 BoogieIcfgContainer [2025-02-08 01:27:45,054 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:27:45,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:27:45,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:27:45,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:27:45,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:27:43" (1/3) ... [2025-02-08 01:27:45,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e3852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:45, skipping insertion in model container [2025-02-08 01:27:45,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:44" (2/3) ... [2025-02-08 01:27:45,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e3852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:45, skipping insertion in model container [2025-02-08 01:27:45,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:45" (3/3) ... [2025-02-08 01:27:45,062 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2025-02-08 01:27:45,072 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:27:45,074 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_init_static_harness.i that has 11 procedures, 108 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:27:45,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:27:45,118 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;@52869478, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:27:45,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:27:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 64 states have internal predecessors, (73), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-08 01:27:45,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-08 01:27:45,128 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:45,129 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2025-02-08 01:27:45,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:45,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash 576042541, now seen corresponding path program 1 times [2025-02-08 01:27:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:45,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502394749] [2025-02-08 01:27:45,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:45,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 01:27:45,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 01:27:45,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:45,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-02-08 01:27:45,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502394749] [2025-02-08 01:27:45,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502394749] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397723266] [2025-02-08 01:27:45,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:45,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:45,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:45,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:27:45,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:27:45,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 01:27:45,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 01:27:45,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:45,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:45,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:27:45,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:45,737 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-02-08 01:27:45,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:27:45,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397723266] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:45,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:27:45,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:27:45,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822070227] [2025-02-08 01:27:45,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:45,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:27:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:45,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:27:45,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:45,759 INFO L87 Difference]: Start difference. First operand has 108 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 64 states have internal predecessors, (73), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-08 01:27:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:45,786 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2025-02-08 01:27:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:27:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 96 [2025-02-08 01:27:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:45,793 INFO L225 Difference]: With dead ends: 210 [2025-02-08 01:27:45,794 INFO L226 Difference]: Without dead ends: 96 [2025-02-08 01:27:45,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:45,800 INFO L435 NwaCegarLoop]: 137 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, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:45,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:27:45,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2025-02-08 01:27:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2025-02-08 01:27:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-02-08 01:27:45,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2025-02-08 01:27:45,834 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 96 [2025-02-08 01:27:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:45,837 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2025-02-08 01:27:45,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-08 01:27:45,838 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2025-02-08 01:27:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-08 01:27:45,842 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:45,842 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2025-02-08 01:27:45,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:27:46,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:27:46,043 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:46,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:46,043 INFO L85 PathProgramCache]: Analyzing trace with hash -526988592, now seen corresponding path program 1 times [2025-02-08 01:27:46,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:46,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32426527] [2025-02-08 01:27:46,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:46,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:46,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 01:27:46,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 01:27:46,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:46,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2025-02-08 01:27:46,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32426527] [2025-02-08 01:27:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32426527] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:46,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:46,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:27:46,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009910015] [2025-02-08 01:27:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:46,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:27:46,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:46,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:27:46,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:27:46,516 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-08 01:27:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:46,632 INFO L93 Difference]: Finished difference Result 157 states and 198 transitions. [2025-02-08 01:27:46,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:27:46,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 96 [2025-02-08 01:27:46,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:46,635 INFO L225 Difference]: With dead ends: 157 [2025-02-08 01:27:46,635 INFO L226 Difference]: Without dead ends: 96 [2025-02-08 01:27:46,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:27:46,636 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 29 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:46,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 477 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:27:46,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2025-02-08 01:27:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2025-02-08 01:27:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 56 states have internal predecessors, (61), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-02-08 01:27:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2025-02-08 01:27:46,654 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 96 [2025-02-08 01:27:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:46,654 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2025-02-08 01:27:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-08 01:27:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2025-02-08 01:27:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-02-08 01:27:46,657 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:46,657 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-08 01:27:46,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:27:46,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -405437766, now seen corresponding path program 1 times [2025-02-08 01:27:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873835308] [2025-02-08 01:27:46,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:46,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:46,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-08 01:27:46,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-08 01:27:46,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:46,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-02-08 01:27:48,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:48,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873835308] [2025-02-08 01:27:48,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873835308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:48,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:48,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-02-08 01:27:48,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267553102] [2025-02-08 01:27:48,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:48,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 01:27:48,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:48,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 01:27:48,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-02-08 01:27:48,732 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 18 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2025-02-08 01:27:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:49,652 INFO L93 Difference]: Finished difference Result 158 states and 197 transitions. [2025-02-08 01:27:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 01:27:49,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 110 [2025-02-08 01:27:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:49,656 INFO L225 Difference]: With dead ends: 158 [2025-02-08 01:27:49,656 INFO L226 Difference]: Without dead ends: 99 [2025-02-08 01:27:49,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2025-02-08 01:27:49,658 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 72 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:49,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 496 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 01:27:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-02-08 01:27:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2025-02-08 01:27:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.105263157894737) internal successors, (63), 59 states have internal predecessors, (63), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2025-02-08 01:27:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2025-02-08 01:27:49,673 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 110 [2025-02-08 01:27:49,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:49,673 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2025-02-08 01:27:49,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2025-02-08 01:27:49,674 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2025-02-08 01:27:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-08 01:27:49,675 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:49,675 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:27:49,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:27:49,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:49,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1690487236, now seen corresponding path program 1 times [2025-02-08 01:27:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241750192] [2025-02-08 01:27:49,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:49,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:49,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-08 01:27:49,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-08 01:27:49,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:49,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-02-08 01:27:50,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:50,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241750192] [2025-02-08 01:27:50,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241750192] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:50,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:50,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:27:50,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566217194] [2025-02-08 01:27:50,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:50,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:27:50,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:50,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:27:50,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:27:50,134 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-08 01:27:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:50,191 INFO L93 Difference]: Finished difference Result 168 states and 210 transitions. [2025-02-08 01:27:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:27:50,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112 [2025-02-08 01:27:50,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:50,193 INFO L225 Difference]: With dead ends: 168 [2025-02-08 01:27:50,195 INFO L226 Difference]: Without dead ends: 106 [2025-02-08 01:27:50,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:27:50,196 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 10 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:50,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 338 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:27:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-02-08 01:27:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2025-02-08 01:27:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 60 states have (on average 1.1166666666666667) internal successors, (67), 62 states have internal predecessors, (67), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2025-02-08 01:27:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 130 transitions. [2025-02-08 01:27:50,215 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 130 transitions. Word has length 112 [2025-02-08 01:27:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:50,215 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 130 transitions. [2025-02-08 01:27:50,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-08 01:27:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 130 transitions. [2025-02-08 01:27:50,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-08 01:27:50,219 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:50,219 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:27:50,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:27:50,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:50,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 797025597, now seen corresponding path program 1 times [2025-02-08 01:27:50,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:50,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946565574] [2025-02-08 01:27:50,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:50,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-08 01:27:50,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-08 01:27:50,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:50,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 01:27:50,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965035662] [2025-02-08 01:27:50,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:50,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:50,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:50,383 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 01:27:50,384 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 01:27:50,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-08 01:27:50,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-08 01:27:50,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:50,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:50,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 157 conjuncts are in the unsatisfiable core [2025-02-08 01:27:50,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:50,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 01:27:50,946 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-02-08 01:27:50,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-02-08 01:27:51,431 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-02-08 01:27:51,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 01:27:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:27:51,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:27:51,527 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-02-08 01:27:51,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2025-02-08 01:27:51,595 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2025-02-08 01:27:51,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2025-02-08 01:27:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:27:52,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2025-02-08 01:28:10,744 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-08 01:28:46,322 WARN L286 SmtUtils]: Spent 29.99s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-02-08 01:29:02,490 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-08 01:29:06,759 INFO L349 Elim1Store]: treesize reduction 218, result has 30.4 percent of original size [2025-02-08 01:29:06,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 167 treesize of output 323 [2025-02-08 01:29:06,987 INFO L349 Elim1Store]: treesize reduction 16, result has 86.8 percent of original size [2025-02-08 01:29:06,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 123 treesize of output 215 [2025-02-08 01:29:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 3 proven. 131 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-02-08 01:29:07,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:29:13,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:29:13,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946565574] [2025-02-08 01:29:13,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 01:29:13,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965035662] [2025-02-08 01:29:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965035662] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:29:13,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:29:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2025-02-08 01:29:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70400433] [2025-02-08 01:29:13,723 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-08 01:29:13,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-02-08 01:29:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:29:13,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-02-08 01:29:13,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1432, Unknown=0, NotChecked=0, Total=1560 [2025-02-08 01:29:13,726 INFO L87 Difference]: Start difference. First operand 102 states and 130 transitions. Second operand has 36 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 29 states have internal predecessors, (59), 12 states have call successors, (20), 8 states have call predecessors, (20), 10 states have return successors, (19), 12 states have call predecessors, (19), 11 states have call successors, (19) [2025-02-08 01:29:19,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]