./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_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 414eeb8ea1256fa06cba80a48a09ba5f5bd5aff7438b9ba4ea2d399e84c5db41 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:11:58,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:11:58,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:11:58,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:11:58,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:11:58,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:11:58,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:11:58,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:11:58,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:11:58,649 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:11:58,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:11:58,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:11:58,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:11:58,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:11:58,650 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:11:58,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:11:58,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:11:58,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:11:58,651 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 -> 414eeb8ea1256fa06cba80a48a09ba5f5bd5aff7438b9ba4ea2d399e84c5db41 [2025-02-06 05:11:58,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:11:58,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:11:58,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:11:58,955 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:11:58,956 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:11:58,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-02-06 05:12:00,219 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7811785ff/805a4cf6cd7a49e0883808390ebe1e2e/FLAG7b9517009 [2025-02-06 05:12:00,642 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:12:00,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-02-06 05:12:00,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7811785ff/805a4cf6cd7a49e0883808390ebe1e2e/FLAG7b9517009 [2025-02-06 05:12:00,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7811785ff/805a4cf6cd7a49e0883808390ebe1e2e [2025-02-06 05:12:00,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:12:00,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:12:00,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:00,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:12:00,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:12:00,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:00" (1/1) ... [2025-02-06 05:12:00,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a85b5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:00, skipping insertion in model container [2025-02-06 05:12:00,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:00" (1/1) ... [2025-02-06 05:12:00,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:12:00,980 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_clear_harness.i[4494,4507] [2025-02-06 05:12:00,988 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_clear_harness.i[4554,4567] [2025-02-06 05:12:01,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,527 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,527 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:01,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,145 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,156 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,178 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_clear_harness.i[228101,228114] [2025-02-06 05:12:02,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:02,195 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:12:02,204 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_clear_harness.i[4494,4507] [2025-02-06 05:12:02,204 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_clear_harness.i[4554,4567] [2025-02-06 05:12:02,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7585-7596] [2025-02-06 05:12:02,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,397 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,397 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,405 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,405 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,406 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,406 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:02,425 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_clear_harness.i[228101,228114] [2025-02-06 05:12:02,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:02,559 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:12:02,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02 WrapperNode [2025-02-06 05:12:02,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:02,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:02,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:12:02,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:12:02,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,684 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-02-06 05:12:02,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:02,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:12:02,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:12:02,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:12:02,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,763 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [34, 238, 2, 8, 1, 2, 2, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [0, 6, 2, 0, 0, 0, 0, 5]. The 241 writes are split as follows [5, 232, 0, 1, 1, 1, 1, 0]. [2025-02-06 05:12:02,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:12:02,816 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:12:02,816 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:12:02,816 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:12:02,816 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (1/1) ... [2025-02-06 05:12:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:02,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:12:02,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:12:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-02-06 05:12:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-02-06 05:12:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:12:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:12:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:12:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:12:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:12:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:12:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:12:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:12:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-02-06 05:12:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-02-06 05:12:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:12:02,866 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:12:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:12:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:12:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:12:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:12:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:12:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:12:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:12:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:12:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:12:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:12:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:12:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:12:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 05:12:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:12:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:12:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:12:03,153 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:12:03,155 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:12:03,187 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:12:03,215 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10130: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:12:03,289 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:12:03,291 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:12:03,301 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7415: havoc #t~ret691.base, #t~ret691.offset; [2025-02-06 05:12:03,324 INFO L1309 $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; [2025-02-06 05:12:03,330 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:12:03,436 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:12:03,450 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:12:08,533 INFO L1309 $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; [2025-02-06 05:12:08,533 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-06 05:12:08,597 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-02-06 05:12:08,597 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:12:08,615 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:12:08,615 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:12:08,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:08 BoogieIcfgContainer [2025-02-06 05:12:08,617 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:12:08,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:12:08,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:12:08,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:12:08,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:12:00" (1/3) ... [2025-02-06 05:12:08,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2354cb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:08, skipping insertion in model container [2025-02-06 05:12:08,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:02" (2/3) ... [2025-02-06 05:12:08,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2354cb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:08, skipping insertion in model container [2025-02-06 05:12:08,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:08" (3/3) ... [2025-02-06 05:12:08,624 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness.i [2025-02-06 05:12:08,633 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:12:08,635 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness.i that has 19 procedures, 175 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-06 05:12:08,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:12:08,684 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;@7a6ad809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:12:08,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:12:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-02-06 05:12:08,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:12:08,695 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:08,695 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:08,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:08,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1591266050, now seen corresponding path program 1 times [2025-02-06 05:12:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295105025] [2025-02-06 05:12:08,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:08,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:13,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:13,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:13,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:13,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-02-06 05:12:13,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295105025] [2025-02-06 05:12:13,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295105025] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:13,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588252466] [2025-02-06 05:12:13,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:13,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:13,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:13,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:13,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:12:18,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:19,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:19,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:19,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:19,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:12:19,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-02-06 05:12:19,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:19,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588252466] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:19,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:19,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:12:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600088551] [2025-02-06 05:12:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:19,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:12:19,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:19,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:12:19,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:19,093 INFO L87 Difference]: Start difference. First operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:19,131 INFO L93 Difference]: Finished difference Result 345 states and 456 transitions. [2025-02-06 05:12:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:12:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-02-06 05:12:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:19,139 INFO L225 Difference]: With dead ends: 345 [2025-02-06 05:12:19,139 INFO L226 Difference]: Without dead ends: 168 [2025-02-06 05:12:19,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:19,144 INFO L435 NwaCegarLoop]: 213 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, 213 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 [2025-02-06 05:12:19,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:12:19,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-02-06 05:12:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-02-06 05:12:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 109 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-02-06 05:12:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2025-02-06 05:12:19,193 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 141 [2025-02-06 05:12:19,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:19,194 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2025-02-06 05:12:19,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2025-02-06 05:12:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:12:19,200 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:19,200 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:19,217 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 [2025-02-06 05:12:19,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:12:19,401 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:19,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -193809122, now seen corresponding path program 1 times [2025-02-06 05:12:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443475046] [2025-02-06 05:12:19,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:19,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:23,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:23,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:23,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:23,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-02-06 05:12:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443475046] [2025-02-06 05:12:24,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443475046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:24,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:12:24,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:12:24,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209582009] [2025-02-06 05:12:24,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:24,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:12:24,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:24,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:12:24,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:12:24,839 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:25,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:25,055 INFO L93 Difference]: Finished difference Result 299 states and 367 transitions. [2025-02-06 05:12:25,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:12:25,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-02-06 05:12:25,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:25,057 INFO L225 Difference]: With dead ends: 299 [2025-02-06 05:12:25,057 INFO L226 Difference]: Without dead ends: 173 [2025-02-06 05:12:25,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:12:25,059 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:25,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:12:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-06 05:12:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-06 05:12:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 113 states have internal predecessors, (129), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:12:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2025-02-06 05:12:25,079 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 141 [2025-02-06 05:12:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:25,080 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2025-02-06 05:12:25,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2025-02-06 05:12:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-06 05:12:25,085 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:25,086 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:25,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:12:25,086 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:25,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -614702148, now seen corresponding path program 1 times [2025-02-06 05:12:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:25,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458331435] [2025-02-06 05:12:25,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:25,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:29,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:29,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:29,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:29,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-06 05:12:33,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:33,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458331435] [2025-02-06 05:12:33,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458331435] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:33,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280007600] [2025-02-06 05:12:33,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:33,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:33,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:33,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:33,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:12:37,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:38,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:38,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:38,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:38,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-02-06 05:12:38,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:38,606 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 [2025-02-06 05:12:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 05:12:44,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:44,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280007600] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:44,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:44,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 17 [2025-02-06 05:12:44,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980400572] [2025-02-06 05:12:44,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:44,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 05:12:44,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:44,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 05:12:44,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2025-02-06 05:12:44,253 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-02-06 05:12:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:49,914 INFO L93 Difference]: Finished difference Result 309 states and 380 transitions. [2025-02-06 05:12:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 05:12:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 147 [2025-02-06 05:12:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:49,918 INFO L225 Difference]: With dead ends: 309 [2025-02-06 05:12:49,918 INFO L226 Difference]: Without dead ends: 194 [2025-02-06 05:12:49,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 125 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-02-06 05:12:49,920 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 115 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:49,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1498 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2025-02-06 05:12:49,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2025-02-06 05:12:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2025-02-06 05:12:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 128 states have internal predecessors, (146), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:12:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 228 transitions. [2025-02-06 05:12:49,941 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 228 transitions. Word has length 147 [2025-02-06 05:12:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:49,941 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 228 transitions. [2025-02-06 05:12:49,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-02-06 05:12:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 228 transitions. [2025-02-06 05:12:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-06 05:12:49,944 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:49,945 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:49,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:12:50,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:50,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1440689926, now seen corresponding path program 1 times [2025-02-06 05:12:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:50,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532468407] [2025-02-06 05:12:50,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:54,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:54,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:54,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:54,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-06 05:12:55,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:55,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532468407] [2025-02-06 05:12:55,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532468407] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:55,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656604054] [2025-02-06 05:12:55,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:55,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:55,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:55,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:12:59,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:13:00,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:13:00,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:00,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:00,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 4357 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:13:00,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 05:13:01,263 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:01,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656604054] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:01,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:01,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:13:01,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558100781] [2025-02-06 05:13:01,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:01,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:13:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:01,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:13:01,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:13:01,264 INFO L87 Difference]: Start difference. First operand 191 states and 228 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:13:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:02,605 INFO L93 Difference]: Finished difference Result 310 states and 377 transitions. [2025-02-06 05:13:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:13:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-02-06 05:13:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:02,607 INFO L225 Difference]: With dead ends: 310 [2025-02-06 05:13:02,607 INFO L226 Difference]: Without dead ends: 196 [2025-02-06 05:13:02,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:13:02,608 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 202 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:02,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 676 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 05:13:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-02-06 05:13:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-02-06 05:13:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.146153846153846) internal successors, (149), 132 states have internal predecessors, (149), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-02-06 05:13:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 235 transitions. [2025-02-06 05:13:02,621 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 235 transitions. Word has length 147 [2025-02-06 05:13:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:02,622 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 235 transitions. [2025-02-06 05:13:02,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:13:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 235 transitions. [2025-02-06 05:13:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-06 05:13:02,623 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:02,623 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:13:02,640 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 [2025-02-06 05:13:02,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:02,824 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:02,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:02,824 INFO L85 PathProgramCache]: Analyzing trace with hash -721029043, now seen corresponding path program 1 times [2025-02-06 05:13:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:02,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440025750] [2025-02-06 05:13:02,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:02,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:06,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-06 05:13:06,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-06 05:13:06,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:06,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:09,092 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-02-06 05:13:09,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:09,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440025750] [2025-02-06 05:13:09,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440025750] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:09,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768416466] [2025-02-06 05:13:09,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:09,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:09,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:09,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:09,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:13:13,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-06 05:13:14,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-06 05:13:14,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:14,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:14,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 4386 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 05:13:14,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-02-06 05:13:16,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768416466] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:16,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 05:13:16,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176181712] [2025-02-06 05:13:16,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:16,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 05:13:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:16,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 05:13:16,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-02-06 05:13:16,602 INFO L87 Difference]: Start difference. First operand 196 states and 235 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 05:13:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:19,691 INFO L93 Difference]: Finished difference Result 292 states and 351 transitions. [2025-02-06 05:13:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 05:13:19,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2025-02-06 05:13:19,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:19,693 INFO L225 Difference]: With dead ends: 292 [2025-02-06 05:13:19,693 INFO L226 Difference]: Without dead ends: 189 [2025-02-06 05:13:19,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:13:19,694 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 233 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:19,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 943 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-06 05:13:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-02-06 05:13:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2025-02-06 05:13:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 125 states have (on average 1.136) internal successors, (142), 126 states have internal predecessors, (142), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:13:19,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 224 transitions. [2025-02-06 05:13:19,707 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 224 transitions. Word has length 153 [2025-02-06 05:13:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:19,707 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 224 transitions. [2025-02-06 05:13:19,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 05:13:19,707 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 224 transitions. [2025-02-06 05:13:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-06 05:13:19,711 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:19,711 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:13:19,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:13:19,911 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 [2025-02-06 05:13:19,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:19,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash 894257696, now seen corresponding path program 1 times [2025-02-06 05:13:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183268728] [2025-02-06 05:13:19,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:24,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 05:13:24,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 05:13:24,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:24,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-02-06 05:13:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183268728] [2025-02-06 05:13:26,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183268728] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422680019] [2025-02-06 05:13:26,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:26,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:26,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:26,407 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) [2025-02-06 05:13:26,408 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