./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 551b0097 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-?-551b009-m [2025-01-09 17:16:58,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:16:58,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:16:58,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:16:58,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:16:58,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:16:58,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:16:58,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:16:58,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:16:58,290 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:16:58,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:16:58,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:16:58,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:16:58,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:16:58,291 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:16:58,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:58,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:58,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:16:58,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:16:58,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:16:58,293 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 [2025-01-09 17:16:58,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:16:58,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:16:58,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:16:58,620 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:16:58,621 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:16:58,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-01-09 17:17:00,004 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/41ced3d1d/1b71d86dc5b544d9858c05f27d77e5d5/FLAG06b25424d [2025-01-09 17:17:00,739 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:17:00,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-01-09 17:17:00,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/41ced3d1d/1b71d86dc5b544d9858c05f27d77e5d5/FLAG06b25424d [2025-01-09 17:17:00,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/41ced3d1d/1b71d86dc5b544d9858c05f27d77e5d5 [2025-01-09 17:17:00,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:17:00,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:17:00,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:17:00,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:17:00,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:17:00,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:00" (1/1) ... [2025-01-09 17:17:00,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fdff9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:00, skipping insertion in model container [2025-01-09 17:17:00,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:00" (1/1) ... [2025-01-09 17:17:00,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:17:01,245 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] [2025-01-09 17:17:01,257 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] [2025-01-09 17:17:02,835 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,836 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,837 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,838 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,838 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,849 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,853 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,858 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:02,858 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,893 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:04,937 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] [2025-01-09 17:17:04,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:04,978 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:17:04,993 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] [2025-01-09 17:17:04,994 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] [2025-01-09 17:17:05,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,058 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7585-7596] [2025-01-09 17:17:05,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,285 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,289 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,289 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,319 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] [2025-01-09 17:17:05,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:05,571 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:17:05,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05 WrapperNode [2025-01-09 17:17:05,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:17:05,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:05,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:17:05,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:17:05,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,759 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-01-09 17:17:05,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:05,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:17:05,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:17:05,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:17:05,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,882 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [2, 238, 8, 2, 2, 1, 34, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 5]. The 241 writes are split as follows [0, 232, 1, 1, 1, 1, 5, 0]. [2025-01-09 17:17:05,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,933 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:17:05,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:17:05,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:17:05,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:17:05,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (1/1) ... [2025-01-09 17:17:05,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:17:06,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:06,027 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) [2025-01-09 17:17:06,031 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 [2025-01-09 17:17:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-01-09 17:17:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:17:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:17:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:17:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:17:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:17:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:17:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:17:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:17:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:17:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:17:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:17:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-01-09 17:17:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:17:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:17:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:17:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:17:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:17:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:17:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:17:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:17:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:17:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:17:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:17:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:17:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:17:06,490 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:17:06,494 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:17:12,812 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-01-09 17:17:12,812 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:17:12,826 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:17:12,826 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:17:12,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:12 BoogieIcfgContainer [2025-01-09 17:17:12,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:17:12,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:17:12,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:17:12,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:17:12,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:17:00" (1/3) ... [2025-01-09 17:17:12,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c8083d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:12, skipping insertion in model container [2025-01-09 17:17:12,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:05" (2/3) ... [2025-01-09 17:17:12,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c8083d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:12, skipping insertion in model container [2025-01-09 17:17:12,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:12" (3/3) ... [2025-01-09 17:17:12,838 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness.i [2025-01-09 17:17:12,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:17:12,852 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness.i that has 19 procedures, 176 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:17:12,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:17:12,931 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;@872c153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:17:12,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:17:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 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) [2025-01-09 17:17:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 17:17:12,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:12,948 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] [2025-01-09 17:17:12,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:12,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1267038029, now seen corresponding path program 1 times [2025-01-09 17:17:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:12,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654871369] [2025-01-09 17:17:12,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:17,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:18,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:18,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:18,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-01-09 17:17:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:18,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654871369] [2025-01-09 17:17:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654871369] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892112095] [2025-01-09 17:17:18,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:18,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:18,871 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) [2025-01-09 17:17:18,873 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 [2025-01-09 17:17:23,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:24,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:24,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:24,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:24,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:17:24,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-01-09 17:17:24,461 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:24,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892112095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:24,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:24,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:17:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097110198] [2025-01-09 17:17:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:24,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:17:24,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:24,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:17:24,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:17:24,489 INFO L87 Difference]: Start difference. First operand has 176 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 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) [2025-01-09 17:17:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:24,530 INFO L93 Difference]: Finished difference Result 347 states and 458 transitions. [2025-01-09 17:17:24,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:17:24,532 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 [2025-01-09 17:17:24,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:24,538 INFO L225 Difference]: With dead ends: 347 [2025-01-09 17:17:24,538 INFO L226 Difference]: Without dead ends: 169 [2025-01-09 17:17:24,542 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 [2025-01-09 17:17:24,545 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:24,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:17:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-01-09 17:17:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2025-01-09 17:17:24,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 110 states have internal predecessors, (126), 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) [2025-01-09 17:17:24,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2025-01-09 17:17:24,585 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 141 [2025-01-09 17:17:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:24,586 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2025-01-09 17:17:24,586 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) [2025-01-09 17:17:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2025-01-09 17:17:24,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 17:17:24,590 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:24,590 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] [2025-01-09 17:17:24,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:17:24,791 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 [2025-01-09 17:17:24,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:24,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1991854981, now seen corresponding path program 1 times [2025-01-09 17:17:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602680869] [2025-01-09 17:17:24,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:24,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:28,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:28,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:28,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:28,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-01-09 17:17:30,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:30,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602680869] [2025-01-09 17:17:30,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602680869] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:30,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:30,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:17:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264473611] [2025-01-09 17:17:30,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:30,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:17:30,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:30,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:17:30,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:30,558 INFO L87 Difference]: Start difference. First operand 169 states and 207 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) [2025-01-09 17:17:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:30,756 INFO L93 Difference]: Finished difference Result 301 states and 369 transitions. [2025-01-09 17:17:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:17:30,757 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 [2025-01-09 17:17:30,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:30,760 INFO L225 Difference]: With dead ends: 301 [2025-01-09 17:17:30,760 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 17:17:30,761 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 [2025-01-09 17:17:30,761 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:30,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:17:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 17:17:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-01-09 17:17:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.1504424778761062) internal successors, (130), 114 states have internal predecessors, (130), 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) [2025-01-09 17:17:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2025-01-09 17:17:30,778 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 141 [2025-01-09 17:17:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:30,778 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2025-01-09 17:17:30,779 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) [2025-01-09 17:17:30,779 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2025-01-09 17:17:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:17:30,781 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:30,784 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] [2025-01-09 17:17:30,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:17:30,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:30,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:30,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1124655729, now seen corresponding path program 1 times [2025-01-09 17:17:30,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:30,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994985760] [2025-01-09 17:17:30,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:30,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:34,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:34,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:34,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:34,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-01-09 17:17:39,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994985760] [2025-01-09 17:17:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994985760] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455872282] [2025-01-09 17:17:39,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:39,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:39,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:39,188 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) [2025-01-09 17:17:39,189 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 [2025-01-09 17:17:43,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:44,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:44,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:44,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:44,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-09 17:17:44,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:44,922 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 [2025-01-09 17:17:46,615 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:17:46,615 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455872282] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:46,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:46,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-01-09 17:17:46,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069545399] [2025-01-09 17:17:46,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:46,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 17:17:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:46,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 17:17:46,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:17:46,618 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:50,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:50,921 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2025-01-09 17:17:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:17:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 147 [2025-01-09 17:17:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:50,925 INFO L225 Difference]: With dead ends: 311 [2025-01-09 17:17:50,925 INFO L226 Difference]: Without dead ends: 198 [2025-01-09 17:17:50,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-01-09 17:17:50,927 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 125 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:50,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1385 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-01-09 17:17:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-01-09 17:17:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2025-01-09 17:17:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 132 states have internal predecessors, (150), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2025-01-09 17:17:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 234 transitions. [2025-01-09 17:17:50,949 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 234 transitions. Word has length 147 [2025-01-09 17:17:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:50,951 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 234 transitions. [2025-01-09 17:17:50,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 234 transitions. [2025-01-09 17:17:50,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:17:50,954 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:50,954 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:50,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:17:51,156 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 [2025-01-09 17:17:51,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:51,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash -17846737, now seen corresponding path program 1 times [2025-01-09 17:17:51,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:51,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417257149] [2025-01-09 17:17:51,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:54,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:54,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:54,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:54,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-01-09 17:17:56,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:56,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417257149] [2025-01-09 17:17:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417257149] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263110407] [2025-01-09 17:17:56,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:56,243 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) [2025-01-09 17:17:56,246 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 [2025-01-09 17:18:00,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:18:00,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:18:00,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:00,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:00,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:18:00,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:18:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:18:01,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:18:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263110407] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:01,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:18:01,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 17:18:01,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95155341] [2025-01-09 17:18:01,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:01,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:18:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:01,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:18:01,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:18:01,892 INFO L87 Difference]: Start difference. First operand 195 states and 234 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) [2025-01-09 17:18:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:03,089 INFO L93 Difference]: Finished difference Result 318 states and 389 transitions. [2025-01-09 17:18:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:18:03,090 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 [2025-01-09 17:18:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:03,092 INFO L225 Difference]: With dead ends: 318 [2025-01-09 17:18:03,092 INFO L226 Difference]: Without dead ends: 200 [2025-01-09 17:18:03,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:18:03,093 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 205 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:03,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 522 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 17:18:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-01-09 17:18:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2025-01-09 17:18:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 131 states have (on average 1.1526717557251909) internal successors, (151), 133 states have internal predecessors, (151), 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) [2025-01-09 17:18:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2025-01-09 17:18:03,118 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 147 [2025-01-09 17:18:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:03,118 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2025-01-09 17:18:03,119 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) [2025-01-09 17:18:03,119 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2025-01-09 17:18:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 17:18:03,124 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:03,124 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:03,143 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 [2025-01-09 17:18:03,324 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 [2025-01-09 17:18:03,325 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:03,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:03,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1251383552, now seen corresponding path program 1 times [2025-01-09 17:18:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:03,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076183498] [2025-01-09 17:18:03,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:06,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 17:18:07,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 17:18:07,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:07,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-01-09 17:18:09,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:09,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076183498] [2025-01-09 17:18:09,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076183498] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:18:09,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801210125] [2025-01-09 17:18:09,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:09,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:18:09,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:18:09,881 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) [2025-01-09 17:18:09,882 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 [2025-01-09 17:18:14,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 17:18:14,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 17:18:14,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:14,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:14,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-09 17:18:15,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:18:16,076 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 [2025-01-09 17:18:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:18:18,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:18:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801210125] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:18:18,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2025-01-09 17:18:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849161229] [2025-01-09 17:18:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:18,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 17:18:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:18,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 17:18:18,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-01-09 17:18:18,796 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23)