./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_move_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_hash_table_move_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 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:50:32,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:50:32,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:50:32,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:50:32,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:50:32,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:50:32,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:50:32,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:50:32,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:50:32,089 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:50:32,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:50:32,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:50:32,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:50:32,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:50:32,090 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:50:32,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:50:32,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:50:32,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:50:32,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:50:32,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:50:32,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:50:32,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:50:32,092 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:50:32,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:50:32,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:50:32,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:50:32,093 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 -> 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 [2025-02-08 01:50:32,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:50:32,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:50:32,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:50:32,322 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:50:32,322 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:50:32,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-02-08 01:50:33,468 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b26c7e34/926fb9c6a141426f982b51b5f122f892/FLAGf3d8c0e10 [2025-02-08 01:50:33,892 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:50:33,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-02-08 01:50:33,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b26c7e34/926fb9c6a141426f982b51b5f122f892/FLAGf3d8c0e10 [2025-02-08 01:50:34,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b26c7e34/926fb9c6a141426f982b51b5f122f892 [2025-02-08 01:50:34,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:50:34,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:50:34,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:50:34,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:50:34,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:50:34,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:50:34" (1/1) ... [2025-02-08 01:50:34,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1eb9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:34, skipping insertion in model container [2025-02-08 01:50:34,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:50:34" (1/1) ... [2025-02-08 01:50:34,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:50:34,347 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_hash_table_move_harness.i[4493,4506] [2025-02-08 01:50:34,355 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_hash_table_move_harness.i[4553,4566] [2025-02-08 01:50:35,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,136 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,136 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,862 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,863 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:35,951 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_hash_table_move_harness.i[227509,227522] [2025-02-08 01:50:35,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:50:35,972 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:50:35,982 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_hash_table_move_harness.i[4493,4506] [2025-02-08 01:50:35,985 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_hash_table_move_harness.i[4553,4566] [2025-02-08 01:50:36,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,034 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-08 01:50:36,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,153 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,154 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,155 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,155 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:50:36,171 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_hash_table_move_harness.i[227509,227522] [2025-02-08 01:50:36,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:50:36,351 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:50:36,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36 WrapperNode [2025-02-08 01:50:36,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:50:36,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:50:36,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:50:36,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:50:36,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,466 INFO L138 Inliner]: procedures = 763, calls = 2427, calls flagged for inlining = 70, calls inlined = 12, statements flattened = 620 [2025-02-08 01:50:36,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:50:36,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:50:36,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:50:36,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:50:36,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,532 INFO L175 MemorySlicer]: Split 281 memory accesses to 8 slices as follows [2, 238, 2, 6, 3, 17, 8, 5]. 85 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 5]. The 240 writes are split as follows [0, 232, 1, 2, 1, 1, 3, 0]. [2025-02-08 01:50:36,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,571 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:50:36,617 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:50:36,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:50:36,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:50:36,618 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (1/1) ... [2025-02-08 01:50:36,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:50:36,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:50:36,646 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 01:50:36,652 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 01:50:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-08 01:50:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-08 01:50:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-08 01:50:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:50:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:50:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-08 01:50:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:50:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-08 01:50:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:50:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:50:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:50:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-08 01:50:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:50:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 01:50:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-08 01:50:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-08 01:50:36,988 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:50:36,990 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:50:37,032 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:50:37,060 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:50:37,062 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:50:37,223 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-08 01:50:37,245 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-08 01:50:37,263 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-08 01:50:37,272 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-08 01:50:42,376 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;save_byte_from_array_#t~ret633#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#3(save_byte_from_array_#t~ret633#1, save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);havoc save_byte_from_array_#t~ret633#1;call save_byte_from_array_#t~mem634#1 := read~int#3(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8); [2025-02-08 01:50:42,376 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7198: havoc save_byte_from_array_#t~mem634#1;call save_byte_from_array_#t~mem635#1 := read~int#3(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);call save_byte_from_array_#t~mem636#1 := read~int#5(save_byte_from_array_~array#1.base, save_byte_from_array_~array#1.offset + (if save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 else save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#3(save_byte_from_array_#t~mem636#1, save_byte_from_array_~storage#1.base, 8 + save_byte_from_array_~storage#1.offset, 1);havoc save_byte_from_array_#t~mem635#1;havoc save_byte_from_array_#t~mem636#1; [2025-02-08 01:50:42,377 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7198-1: SUMMARY for call assume_abort_if_not((if 0 == (if save_byte_from_array_#t~mem634#1 % 18446744073709551616 < save_byte_from_array_~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:50:42,482 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2025-02-08 01:50:42,483 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:50:42,496 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:50:42,497 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:50:42,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:50:42 BoogieIcfgContainer [2025-02-08 01:50:42,498 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:50:42,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:50:42,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:50:42,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:50:42,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:50:34" (1/3) ... [2025-02-08 01:50:42,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e3a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:50:42, skipping insertion in model container [2025-02-08 01:50:42,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:50:36" (2/3) ... [2025-02-08 01:50:42,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e3a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:50:42, skipping insertion in model container [2025-02-08 01:50:42,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:50:42" (3/3) ... [2025-02-08 01:50:42,506 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2025-02-08 01:50:42,515 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:50:42,516 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_move_harness.i that has 22 procedures, 151 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2025-02-08 01:50:42,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:50:42,563 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;@3c5a5db1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:50:42,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:50:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 77 states have internal predecessors, (90), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 01:50:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-08 01:50:42,579 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:50:42,580 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2025-02-08 01:50:42,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:50:42,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:50:42,585 INFO L85 PathProgramCache]: Analyzing trace with hash -868570259, now seen corresponding path program 1 times [2025-02-08 01:50:42,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:50:42,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376365955] [2025-02-08 01:50:42,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:50:42,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:50:47,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-08 01:50:47,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-08 01:50:47,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:50:47,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:50:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2025-02-08 01:50:47,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:50:47,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376365955] [2025-02-08 01:50:47,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376365955] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:50:47,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893853515] [2025-02-08 01:50:47,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:50:47,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:50:47,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:50:47,933 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 01:50:47,935 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 01:50:52,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-08 01:50:52,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-08 01:50:52,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:50:52,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:50:52,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 4396 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:50:52,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:50:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2025-02-08 01:50:52,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:50:52,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893853515] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:50:52,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:50:52,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:50:52,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515249123] [2025-02-08 01:50:52,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:50:52,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:50:52,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:50:52,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:50:52,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:50:52,815 INFO L87 Difference]: Start difference. First operand has 123 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 77 states have internal predecessors, (90), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-08 01:50:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:50:52,846 INFO L93 Difference]: Finished difference Result 239 states and 317 transitions. [2025-02-08 01:50:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:50:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2025-02-08 01:50:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:50:52,852 INFO L225 Difference]: With dead ends: 239 [2025-02-08 01:50:52,852 INFO L226 Difference]: Without dead ends: 110 [2025-02-08 01:50:52,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 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 01:50:52,856 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:50:52,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:50:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-02-08 01:50:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2025-02-08 01:50:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 68 states have internal predecessors, (76), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-08 01:50:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2025-02-08 01:50:52,886 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 136 [2025-02-08 01:50:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:50:52,886 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2025-02-08 01:50:52,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-08 01:50:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2025-02-08 01:50:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-08 01:50:52,889 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:50:52,889 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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 01:50:52,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:50:53,089 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 01:50:53,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:50:53,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:50:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -886201707, now seen corresponding path program 1 times [2025-02-08 01:50:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:50:53,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385310126] [2025-02-08 01:50:53,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:50:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:50:57,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 01:50:57,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 01:50:57,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:50:57,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:50:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-02-08 01:50:58,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:50:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385310126] [2025-02-08 01:50:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385310126] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:50:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266726769] [2025-02-08 01:50:58,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:50:58,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:50:58,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:50:58,162 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 01:50:58,164 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 01:51:02,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 01:51:02,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 01:51:02,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:02,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:02,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 4422 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 01:51:02,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:51:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-02-08 01:51:03,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:51:03,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266726769] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:03,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:51:03,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-08 01:51:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554564273] [2025-02-08 01:51:03,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:03,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:51:03,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:03,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:51:03,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:51:03,606 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-08 01:51:03,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:03,890 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2025-02-08 01:51:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:51:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 143 [2025-02-08 01:51:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:03,893 INFO L225 Difference]: With dead ends: 205 [2025-02-08 01:51:03,893 INFO L226 Difference]: Without dead ends: 117 [2025-02-08 01:51:03,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:51:03,894 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 15 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 01:51:03,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 339 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 01:51:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-08 01:51:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-02-08 01:51:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 74 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2025-02-08 01:51:03,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions. [2025-02-08 01:51:03,904 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 143 [2025-02-08 01:51:03,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:03,904 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions. [2025-02-08 01:51:03,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-08 01:51:03,904 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2025-02-08 01:51:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-08 01:51:03,906 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:03,906 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:51:03,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 01:51:04,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:04,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:04,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:04,107 INFO L85 PathProgramCache]: Analyzing trace with hash 323040532, now seen corresponding path program 1 times [2025-02-08 01:51:04,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:04,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736662734] [2025-02-08 01:51:04,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:04,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:51:07,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 01:51:08,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 01:51:08,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:08,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-02-08 01:51:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:51:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736662734] [2025-02-08 01:51:08,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736662734] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:51:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487274787] [2025-02-08 01:51:08,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:08,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:08,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:51:08,771 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 01:51:08,772 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 01:51:13,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 01:51:13,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 01:51:13,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:13,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:13,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 4427 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 01:51:13,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:51:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2025-02-08 01:51:14,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:51:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487274787] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:14,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:51:14,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2025-02-08 01:51:14,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711837605] [2025-02-08 01:51:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:14,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:51:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:14,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:51:14,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:51:14,637 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-02-08 01:51:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:15,041 INFO L93 Difference]: Finished difference Result 175 states and 213 transitions. [2025-02-08 01:51:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:51:15,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 143 [2025-02-08 01:51:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:15,043 INFO L225 Difference]: With dead ends: 175 [2025-02-08 01:51:15,043 INFO L226 Difference]: Without dead ends: 117 [2025-02-08 01:51:15,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:51:15,044 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 15 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 01:51:15,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 449 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 01:51:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-08 01:51:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-02-08 01:51:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 74 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (31), 29 states have call predecessors, (31), 29 states have call successors, (31) [2025-02-08 01:51:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 143 transitions. [2025-02-08 01:51:15,051 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 143 transitions. Word has length 143 [2025-02-08 01:51:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:15,051 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 143 transitions. [2025-02-08 01:51:15,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-02-08 01:51:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 143 transitions. [2025-02-08 01:51:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-08 01:51:15,052 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:15,052 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:51:15,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:51:15,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:15,257 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:15,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:15,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1961822923, now seen corresponding path program 2 times [2025-02-08 01:51:15,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:15,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264300657] [2025-02-08 01:51:15,258 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:51:15,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:51:19,093 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-08 01:51:19,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 143 statements. [2025-02-08 01:51:19,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:51:19,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-08 01:51:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:51:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264300657] [2025-02-08 01:51:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264300657] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:20,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:51:20,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:51:20,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713113227] [2025-02-08 01:51:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:20,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:51:20,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:20,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:51:20,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:51:20,139 INFO L87 Difference]: Start difference. First operand 117 states and 143 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:51:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:20,245 INFO L93 Difference]: Finished difference Result 166 states and 203 transitions. [2025-02-08 01:51:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:51:20,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 143 [2025-02-08 01:51:20,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:20,247 INFO L225 Difference]: With dead ends: 166 [2025-02-08 01:51:20,247 INFO L226 Difference]: Without dead ends: 118 [2025-02-08 01:51:20,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:51:20,248 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:51:20,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 388 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:51:20,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-02-08 01:51:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-02-08 01:51:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 75 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (31), 29 states have call predecessors, (31), 29 states have call successors, (31) [2025-02-08 01:51:20,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 144 transitions. [2025-02-08 01:51:20,261 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 144 transitions. Word has length 143 [2025-02-08 01:51:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:20,262 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 144 transitions. [2025-02-08 01:51:20,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:51:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 144 transitions. [2025-02-08 01:51:20,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-08 01:51:20,265 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:20,265 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:51:20,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:51:20,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:20,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:20,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2057433460, now seen corresponding path program 1 times [2025-02-08 01:51:20,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:20,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900233018] [2025-02-08 01:51:20,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:20,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:51:23,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:51:23,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:51:23,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:23,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-08 01:51:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:51:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900233018] [2025-02-08 01:51:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900233018] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:51:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782320044] [2025-02-08 01:51:24,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:24,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:24,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:51:24,524 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 01:51:24,525 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 01:51:28,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:51:29,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:51:29,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:29,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:29,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 4451 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 01:51:29,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:51:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2025-02-08 01:51:30,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:51:30,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782320044] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:30,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:51:30,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2025-02-08 01:51:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506228002] [2025-02-08 01:51:30,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:30,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:51:30,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:30,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:51:30,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:51:30,606 INFO L87 Difference]: Start difference. First operand 118 states and 144 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-08 01:51:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:31,067 INFO L93 Difference]: Finished difference Result 161 states and 195 transitions. [2025-02-08 01:51:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:51:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 144 [2025-02-08 01:51:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:31,069 INFO L225 Difference]: With dead ends: 161 [2025-02-08 01:51:31,069 INFO L226 Difference]: Without dead ends: 111 [2025-02-08 01:51:31,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:51:31,070 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 9 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:51:31,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 582 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:51:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2025-02-08 01:51:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2025-02-08 01:51:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.1176470588235294) internal successors, (76), 69 states have internal predecessors, (76), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-08 01:51:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2025-02-08 01:51:31,077 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 144 [2025-02-08 01:51:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:31,077 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2025-02-08 01:51:31,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-08 01:51:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2025-02-08 01:51:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-08 01:51:31,079 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:31,079 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2025-02-08 01:51:31,099 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 01:51:31,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:31,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:31,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1860919955, now seen corresponding path program 1 times [2025-02-08 01:51:31,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:31,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142102849] [2025-02-08 01:51:31,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:31,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:51:35,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:51:35,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:51:35,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:35,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-08 01:51:35,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:51:35,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142102849] [2025-02-08 01:51:35,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142102849] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:51:35,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738140617] [2025-02-08 01:51:35,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:35,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:35,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:51:35,674 INFO L229 MonitoredProcess]: Starting monitored process 6 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 01:51:35,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 01:51:40,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:51:40,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:51:40,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:40,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:40,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 4456 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-08 01:51:40,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:51:41,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 01:51:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-02-08 01:51:43,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:51:43,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738140617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:43,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:51:43,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2025-02-08 01:51:43,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786876646] [2025-02-08 01:51:43,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:43,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 01:51:43,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:43,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 01:51:43,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:51:43,159 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (24), 3 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 01:51:47,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:51:55,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 01:51:59,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 01:51:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:59,327 INFO L93 Difference]: Finished difference Result 256 states and 297 transitions. [2025-02-08 01:51:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 01:51:59,328 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (24), 3 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 144 [2025-02-08 01:51:59,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:59,329 INFO L225 Difference]: With dead ends: 256 [2025-02-08 01:51:59,329 INFO L226 Difference]: Without dead ends: 167 [2025-02-08 01:51:59,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2025-02-08 01:51:59,330 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 80 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:51:59,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 846 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2025-02-08 01:51:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-02-08 01:51:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2025-02-08 01:51:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 108 states have (on average 1.1296296296296295) internal successors, (122), 110 states have internal predecessors, (122), 35 states have call successors, (35), 22 states have call predecessors, (35), 23 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2025-02-08 01:51:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 192 transitions. [2025-02-08 01:51:59,347 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 192 transitions. Word has length 144 [2025-02-08 01:51:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:59,347 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 192 transitions. [2025-02-08 01:51:59,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (24), 3 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 01:51:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 192 transitions. [2025-02-08 01:51:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-08 01:51:59,348 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:59,349 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:51:59,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 01:51:59,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:51:59,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:59,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1358872574, now seen corresponding path program 1 times [2025-02-08 01:51:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657510495] [2025-02-08 01:51:59,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:03,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-08 01:52:03,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-08 01:52:03,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:03,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-08 01:52:04,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:04,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657510495] [2025-02-08 01:52:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657510495] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:04,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960150772] [2025-02-08 01:52:04,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:04,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:04,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:04,053 INFO L229 MonitoredProcess]: Starting monitored process 7 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 01:52:04,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process