./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_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_clean_up_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 a0dd09971efa7db826882d7e7ad0499c235114631ef797adfcc295e8a3fc3e13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:48:40,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:48:40,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:48:40,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:48:40,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:48:40,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:48:40,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:48:40,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:48:40,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:48:40,162 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:48:40,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:48:40,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:48:40,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:48:40,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:48:40,162 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:48:40,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:48:40,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:48:40,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:48:40,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:40,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:48:40,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:48:40,164 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 -> a0dd09971efa7db826882d7e7ad0499c235114631ef797adfcc295e8a3fc3e13 [2025-02-08 01:48:40,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:48:40,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:48:40,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:48:40,381 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:48:40,382 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:48:40,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2025-02-08 01:48:41,538 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c453c46e9/15b56e9b28d1458d8c0391106bd9b6e5/FLAG5ceede8d8 [2025-02-08 01:48:41,998 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:48:41,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2025-02-08 01:48:42,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c453c46e9/15b56e9b28d1458d8c0391106bd9b6e5/FLAG5ceede8d8 [2025-02-08 01:48:42,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c453c46e9/15b56e9b28d1458d8c0391106bd9b6e5 [2025-02-08 01:48:42,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:48:42,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:48:42,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:42,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:48:42,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:48:42,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:42" (1/1) ... [2025-02-08 01:48:42,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588bb10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:42, skipping insertion in model container [2025-02-08 01:48:42,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:42" (1/1) ... [2025-02-08 01:48:42,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:48:42,352 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_clean_up_harness.i[4497,4510] [2025-02-08 01:48:42,357 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_clean_up_harness.i[4557,4570] [2025-02-08 01:48:42,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:42,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,442 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,545 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_clean_up_harness.i[228346,228359] [2025-02-08 01:48:43,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:43,571 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:48:43,580 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_clean_up_harness.i[4497,4510] [2025-02-08 01:48:43,584 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_clean_up_harness.i[4557,4570] [2025-02-08 01:48:43,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,621 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7585-7596] [2025-02-08 01:48:43,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,729 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,737 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,737 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:43,757 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_clean_up_harness.i[228346,228359] [2025-02-08 01:48:43,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:43,932 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:48:43,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43 WrapperNode [2025-02-08 01:48:43,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:43,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:43,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:48:43,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:48:43,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,054 INFO L138 Inliner]: procedures = 764, calls = 2440, calls flagged for inlining = 72, calls inlined = 16, statements flattened = 716 [2025-02-08 01:48:44,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:44,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:48:44,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:48:44,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:48:44,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,129 INFO L175 MemorySlicer]: Split 304 memory accesses to 8 slices as follows [238, 2, 2, 16, 1, 6, 2, 37]. 78 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 5, 0, 0]. The 243 writes are split as follows [232, 0, 1, 2, 1, 0, 1, 6]. [2025-02-08 01:48:44,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:48:44,179 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:48:44,179 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:48:44,179 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:48:44,180 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (1/1) ... [2025-02-08 01:48:44,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:44,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:44,213 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 01:48:44,227 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 01:48:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-02-08 01:48:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-02-08 01:48:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-08 01:48:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-08 01:48:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:48:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:48:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:48:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-08 01:48:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:48:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-08 01:48:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-08 01:48:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:48:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:48:44,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:48:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-08 01:48:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:48:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 01:48:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-08 01:48:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-08 01:48:44,562 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:48:44,565 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:48:44,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:48:44,638 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10130: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-08 01:48:44,693 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:48:44,697 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:48:44,704 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7415: havoc #t~ret691.base, #t~ret691.offset; [2025-02-08 01:48:44,722 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10017: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-02-08 01:48:44,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:48:44,802 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-08 01:48:44,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-08 01:48:49,974 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6833: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-02-08 01:48:49,974 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-08 01:48:50,087 INFO L? ?]: Removed 153 outVars from TransFormulas that were not future-live. [2025-02-08 01:48:50,088 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:48:50,107 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:48:50,108 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:48:50,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:50 BoogieIcfgContainer [2025-02-08 01:48:50,108 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:48:50,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:48:50,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:48:50,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:48:50,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:48:42" (1/3) ... [2025-02-08 01:48:50,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa2743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:50, skipping insertion in model container [2025-02-08 01:48:50,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:43" (2/3) ... [2025-02-08 01:48:50,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa2743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:50, skipping insertion in model container [2025-02-08 01:48:50,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:50" (3/3) ... [2025-02-08 01:48:50,116 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i [2025-02-08 01:48:50,126 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:48:50,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clean_up_harness.i that has 20 procedures, 188 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-08 01:48:50,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:48:50,178 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;@6f33c3ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:48:50,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:48:50,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 121 states have internal predecessors, (141), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-08 01:48:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:48:50,193 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:48:50,194 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:48:50,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:48:50,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:48:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2096300848, now seen corresponding path program 1 times [2025-02-08 01:48:50,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:48:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701563655] [2025-02-08 01:48:50,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:50,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:48:54,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:48:54,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:48:54,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:48:54,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:48:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-02-08 01:48:55,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:48:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701563655] [2025-02-08 01:48:55,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701563655] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:48:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385110286] [2025-02-08 01:48:55,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:55,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:48:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:55,315 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 01:48:55,316 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 01:48:59,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:48:59,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:48:59,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:48:59,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:48:59,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:48:59,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-02-08 01:49:00,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:49:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385110286] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:00,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:49:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:49:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821133517] [2025-02-08 01:49:00,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:00,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:49:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:00,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:49:00,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:49:00,032 INFO L87 Difference]: Start difference. First operand has 188 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 121 states have internal predecessors, (141), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:00,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:00,094 INFO L93 Difference]: Finished difference Result 372 states and 496 transitions. [2025-02-08 01:49:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:49:00,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2025-02-08 01:49:00,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:00,104 INFO L225 Difference]: With dead ends: 372 [2025-02-08 01:49:00,104 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:00,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 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 01:49:00,113 INFO L435 NwaCegarLoop]: 230 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, 230 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 01:49:00,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:49:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.146788990825688) internal successors, (125), 110 states have internal predecessors, (125), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2025-02-08 01:49:00,167 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 154 [2025-02-08 01:49:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:00,169 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2025-02-08 01:49:00,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2025-02-08 01:49:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:49:00,176 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:00,177 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:00,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:49:00,378 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 01:49:00,378 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:00,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1070375664, now seen corresponding path program 1 times [2025-02-08 01:49:00,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:00,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683519897] [2025-02-08 01:49:00,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:00,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:04,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:49:04,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:49:04,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:04,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2025-02-08 01:49:05,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683519897] [2025-02-08 01:49:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683519897] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420696033] [2025-02-08 01:49:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:05,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:05,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:05,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:05,371 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:05,482 INFO L93 Difference]: Finished difference Result 315 states and 391 transitions. [2025-02-08 01:49:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:05,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2025-02-08 01:49:05,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:05,485 INFO L225 Difference]: With dead ends: 315 [2025-02-08 01:49:05,485 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:05,486 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 01:49:05,486 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:05,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 627 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.1376146788990826) internal successors, (124), 110 states have internal predecessors, (124), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2025-02-08 01:49:05,497 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 154 [2025-02-08 01:49:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:05,498 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2025-02-08 01:49:05,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2025-02-08 01:49:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-08 01:49:05,499 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:05,500 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:05,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:49:05,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:05,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash 447389071, now seen corresponding path program 1 times [2025-02-08 01:49:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:05,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163167290] [2025-02-08 01:49:05,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:09,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:09,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:09,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:09,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2025-02-08 01:49:10,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:10,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163167290] [2025-02-08 01:49:10,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163167290] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:10,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:10,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:10,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87290077] [2025-02-08 01:49:10,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:10,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:10,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:10,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:10,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:10,225 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:49:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:10,328 INFO L93 Difference]: Finished difference Result 315 states and 390 transitions. [2025-02-08 01:49:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:10,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2025-02-08 01:49:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:10,332 INFO L225 Difference]: With dead ends: 315 [2025-02-08 01:49:10,335 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:10,336 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 01:49:10,336 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:10,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.128440366972477) internal successors, (123), 110 states have internal predecessors, (123), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2025-02-08 01:49:10,346 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 165 [2025-02-08 01:49:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:10,346 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2025-02-08 01:49:10,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:49:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2025-02-08 01:49:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-08 01:49:10,348 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:10,348 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:10,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:49:10,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:10,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash -834783215, now seen corresponding path program 1 times [2025-02-08 01:49:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:10,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555030270] [2025-02-08 01:49:10,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:14,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:14,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:14,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:14,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-02-08 01:49:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555030270] [2025-02-08 01:49:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555030270] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83386617] [2025-02-08 01:49:17,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:17,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:17,381 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 01:49:17,382 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 01:49:21,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:22,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:22,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:22,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:22,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 4519 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 01:49:22,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-02-08 01:49:23,969 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:49:23,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83386617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:23,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:49:23,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-02-08 01:49:23,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709180632] [2025-02-08 01:49:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:23,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:49:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:23,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:49:23,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-02-08 01:49:23,973 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:49:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:25,481 INFO L93 Difference]: Finished difference Result 286 states and 345 transitions. [2025-02-08 01:49:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:49:25,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 165 [2025-02-08 01:49:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:25,487 INFO L225 Difference]: With dead ends: 286 [2025-02-08 01:49:25,487 INFO L226 Difference]: Without dead ends: 186 [2025-02-08 01:49:25,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-08 01:49:25,488 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 23 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:25,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1000 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 01:49:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-02-08 01:49:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2025-02-08 01:49:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 117 states have (on average 1.1196581196581197) internal successors, (131), 118 states have internal predecessors, (131), 45 states have call successors, (45), 21 states have call predecessors, (45), 21 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 220 transitions. [2025-02-08 01:49:25,505 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 220 transitions. Word has length 165 [2025-02-08 01:49:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:25,509 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 220 transitions. [2025-02-08 01:49:25,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:49:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 220 transitions. [2025-02-08 01:49:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-02-08 01:49:25,511 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:25,511 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:25,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:49:25,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:25,712 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:25,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1291673162, now seen corresponding path program 1 times [2025-02-08 01:49:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:25,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060560832] [2025-02-08 01:49:25,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:25,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:29,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-02-08 01:49:29,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-02-08 01:49:29,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:29,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-02-08 01:49:32,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060560832] [2025-02-08 01:49:32,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060560832] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531561161] [2025-02-08 01:49:32,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:32,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:32,399 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 01:49:32,401 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 01:49:36,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-02-08 01:49:37,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-02-08 01:49:37,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:37,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:37,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 4544 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 01:49:37,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 127 proven. 18 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 01:49:39,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:49:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-02-08 01:49:44,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531561161] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 01:49:44,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 01:49:44,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2025-02-08 01:49:44,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156750240] [2025-02-08 01:49:44,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 01:49:44,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 01:49:44,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:44,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 01:49:44,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2025-02-08 01:49:44,303 INFO L87 Difference]: Start difference. First operand 184 states and 220 transitions. Second operand has 24 states, 22 states have (on average 5.5) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (54), 3 states have call predecessors, (54), 9 states have return successors, (53), 7 states have call predecessors, (53), 6 states have call successors, (53) [2025-02-08 01:49:48,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:49:52,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:49:57,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:50:13,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:50:13,369 INFO L93 Difference]: Finished difference Result 336 states and 409 transitions. [2025-02-08 01:50:13,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-08 01:50:13,370 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.5) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (54), 3 states have call predecessors, (54), 9 states have return successors, (53), 7 states have call predecessors, (53), 6 states have call successors, (53) Word has length 174 [2025-02-08 01:50:13,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:50:13,373 INFO L225 Difference]: With dead ends: 336 [2025-02-08 01:50:13,373 INFO L226 Difference]: Without dead ends: 194 [2025-02-08 01:50:13,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 01:50:13,374 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 48 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:50:13,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3054 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 907 Invalid, 3 Unknown, 0 Unchecked, 25.5s Time] [2025-02-08 01:50:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2025-02-08 01:50:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2025-02-08 01:50:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 123 states have (on average 1.1219512195121952) internal successors, (138), 126 states have internal predecessors, (138), 45 states have call successors, (45), 21 states have call predecessors, (45), 23 states have return successors, (49), 44 states have call predecessors, (49), 44 states have call successors, (49) [2025-02-08 01:50:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 232 transitions. [2025-02-08 01:50:13,400 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 232 transitions. Word has length 174 [2025-02-08 01:50:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:50:13,400 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 232 transitions. [2025-02-08 01:50:13,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.5) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (54), 3 states have call predecessors, (54), 9 states have return successors, (53), 7 states have call predecessors, (53), 6 states have call successors, (53) [2025-02-08 01:50:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 232 transitions. [2025-02-08 01:50:13,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-02-08 01:50:13,401 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:50:13,401 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:50:13,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:50:13,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:50:13,606 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:50:13,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:50:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash -431799745, now seen corresponding path program 1 times [2025-02-08 01:50:13,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:50:13,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23318806] [2025-02-08 01:50:13,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:50:13,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:50:17,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-02-08 01:50:17,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-02-08 01:50:17,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:50:17,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat