./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.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_swap_harness_negated.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 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:19:39,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:19:39,281 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:19:39,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:19:39,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:19:39,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:19:39,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:19:39,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:19:39,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:19:39,311 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:19:39,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:19:39,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:19:39,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:19:39,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:19:39,311 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:19:39,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:19:39,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:19:39,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:19:39,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:19:39,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:19:39,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:19:39,313 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 -> 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c [2025-01-09 17:19:39,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:19:39,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:19:39,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:19:39,603 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:19:39,604 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:19:39,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-01-09 17:19:40,860 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0333639/eeb72859d815452e88cca77e8a162890/FLAGa0966dcbd [2025-01-09 17:19:41,407 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:19:41,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-01-09 17:19:41,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0333639/eeb72859d815452e88cca77e8a162890/FLAGa0966dcbd [2025-01-09 17:19:41,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0333639/eeb72859d815452e88cca77e8a162890 [2025-01-09 17:19:41,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:19:41,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:19:41,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:19:41,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:19:41,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:19:41,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:19:41" (1/1) ... [2025-01-09 17:19:41,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109460b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:41, skipping insertion in model container [2025-01-09 17:19:41,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:19:41" (1/1) ... [2025-01-09 17:19:41,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:19:41,825 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_swap_harness_negated.i[4493,4506] [2025-01-09 17:19:41,835 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_swap_harness_negated.i[4553,4566] [2025-01-09 17:19:42,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,624 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,634 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,635 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,635 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:42,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,246 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,247 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,300 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_swap_harness_negated.i[228391,228404] [2025-01-09 17:19:43,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:19:43,329 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:19:43,339 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_swap_harness_negated.i[4493,4506] [2025-01-09 17:19:43,343 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_swap_harness_negated.i[4553,4566] [2025-01-09 17:19:43,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-01-09 17:19:43,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:19:43,563 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_swap_harness_negated.i[228391,228404] [2025-01-09 17:19:43,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:19:43,706 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:19:43,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43 WrapperNode [2025-01-09 17:19:43,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:19:43,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:19:43,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:19:43,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:19:43,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,843 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-01-09 17:19:43,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:19:43,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:19:43,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:19:43,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:19:43,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,912 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 2, 6, 9, 2, 17, 3, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 0, 0, 0, 1, 0, 0, 5]. The 240 writes are split as follows [0, 232, 1, 2, 3, 0, 1, 1, 0]. [2025-01-09 17:19:43,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:19:43,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:19:43,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:19:43,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:19:43,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (1/1) ... [2025-01-09 17:19:43,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:19:43,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:19:43,997 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 17:19:44,003 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 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:19:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-01-09 17:19:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:19:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:19:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:19:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:19:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:19:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:19:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:19:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-01-09 17:19:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-01-09 17:19:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:19:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:19:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:19:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:19:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 17:19:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:19:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:19:44,337 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:19:44,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:19:50,015 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-01-09 17:19:50,016 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:19:50,027 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:19:50,028 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:19:50,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:19:50 BoogieIcfgContainer [2025-01-09 17:19:50,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:19:50,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:19:50,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:19:50,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:19:50,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:19:41" (1/3) ... [2025-01-09 17:19:50,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefe78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:19:50, skipping insertion in model container [2025-01-09 17:19:50,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:43" (2/3) ... [2025-01-09 17:19:50,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefe78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:19:50, skipping insertion in model container [2025-01-09 17:19:50,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:19:50" (3/3) ... [2025-01-09 17:19:50,035 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness_negated.i [2025-01-09 17:19:50,048 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:19:50,051 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness_negated.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 17:19:50,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:19:50,106 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;@79560be5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:19:50,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:19:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-01-09 17:19:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 17:19:50,115 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:50,116 INFO L218 NwaCegarLoop]: trace histogram [1, 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 17:19:50,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:50,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 35159209, now seen corresponding path program 1 times [2025-01-09 17:19:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:50,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599300573] [2025-01-09 17:19:50,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:50,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:54,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 17:19:54,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 17:19:54,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:54,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 17:19:55,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599300573] [2025-01-09 17:19:55,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599300573] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:55,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:55,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 17:19:55,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199604240] [2025-01-09 17:19:55,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:55,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:19:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:55,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:19:55,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:19:55,163 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:19:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:55,192 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-01-09 17:19:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:19:55,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-01-09 17:19:55,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:55,202 INFO L225 Difference]: With dead ends: 280 [2025-01-09 17:19:55,203 INFO L226 Difference]: Without dead ends: 137 [2025-01-09 17:19:55,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 17:19:55,212 INFO L435 NwaCegarLoop]: 174 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, 174 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 17:19:55,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:19:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-01-09 17:19:55,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-01-09 17:19:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 17:19:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-01-09 17:19:55,246 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-01-09 17:19:55,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:55,246 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-01-09 17:19:55,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:19:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-01-09 17:19:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 17:19:55,248 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:55,248 INFO L218 NwaCegarLoop]: trace histogram [1, 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 17:19:55,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 17:19:55,248 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:55,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1958985497, now seen corresponding path program 1 times [2025-01-09 17:19:55,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:55,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836343096] [2025-01-09 17:19:55,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:58,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 17:19:59,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 17:19:59,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:59,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 17:19:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836343096] [2025-01-09 17:19:59,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836343096] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:59,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:59,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 17:19:59,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724995807] [2025-01-09 17:19:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:59,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:19:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:59,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:19:59,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:19:59,530 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:19:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:59,617 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-01-09 17:19:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:19:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-01-09 17:19:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:59,620 INFO L225 Difference]: With dead ends: 192 [2025-01-09 17:19:59,621 INFO L226 Difference]: Without dead ends: 148 [2025-01-09 17:19:59,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:19:59,623 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:19:59,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:19:59,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-01-09 17:19:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-01-09 17:19:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-01-09 17:19:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-01-09 17:19:59,643 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-01-09 17:19:59,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:59,647 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-01-09 17:19:59,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:19:59,647 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-01-09 17:19:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-09 17:19:59,649 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:59,649 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 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 17:19:59,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:19:59,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:59,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash -63722128, now seen corresponding path program 1 times [2025-01-09 17:19:59,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:59,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033640372] [2025-01-09 17:19:59,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:59,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:03,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 17:20:03,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 17:20:03,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:03,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 17:20:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:03,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033640372] [2025-01-09 17:20:03,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033640372] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:03,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:20:03,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 17:20:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103144634] [2025-01-09 17:20:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:03,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:20:03,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:03,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:20:03,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:20:03,709 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:20:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:20:03,756 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-01-09 17:20:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:20:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-01-09 17:20:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:20:03,758 INFO L225 Difference]: With dead ends: 202 [2025-01-09 17:20:03,758 INFO L226 Difference]: Without dead ends: 157 [2025-01-09 17:20:03,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:20:03,759 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 2 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:20:03,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 332 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:20:03,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-01-09 17:20:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-01-09 17:20:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-01-09 17:20:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-01-09 17:20:03,770 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-01-09 17:20:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:20:03,770 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-01-09 17:20:03,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 17:20:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-01-09 17:20:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 17:20:03,773 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:20:03,773 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 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] [2025-01-09 17:20:03,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:20:03,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:20:03,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:20:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash -780183786, now seen corresponding path program 1 times [2025-01-09 17:20:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:20:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820989862] [2025-01-09 17:20:03,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:07,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 17:20:07,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 17:20:07,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:07,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-09 17:20:08,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:08,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820989862] [2025-01-09 17:20:08,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820989862] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:20:08,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320112862] [2025-01-09 17:20:08,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:20:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:20:08,635 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 17:20:08,636 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 17:20:12,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 17:20:13,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 17:20:13,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:13,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:13,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 4483 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:20:13,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:20:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-09 17:20:13,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:20:13,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320112862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:13,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:20:13,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-01-09 17:20:13,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097342421] [2025-01-09 17:20:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:13,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:20:13,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:13,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:20:13,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:20:13,419 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 17:20:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:20:13,595 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-01-09 17:20:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:20:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2025-01-09 17:20:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:20:13,598 INFO L225 Difference]: With dead ends: 313 [2025-01-09 17:20:13,598 INFO L226 Difference]: Without dead ends: 162 [2025-01-09 17:20:13,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 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 17:20:13,599 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:20:13,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:20:13,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-01-09 17:20:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-01-09 17:20:13,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-01-09 17:20:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-01-09 17:20:13,617 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 128 [2025-01-09 17:20:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:20:13,617 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-01-09 17:20:13,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 17:20:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-01-09 17:20:13,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 17:20:13,621 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:20:13,622 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:20:13,639 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 17:20:13,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:20:13,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:20:13,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:20:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1412508686, now seen corresponding path program 1 times [2025-01-09 17:20:13,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:20:13,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595279057] [2025-01-09 17:20:13,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:13,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:17,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 17:20:17,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 17:20:17,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:17,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-01-09 17:20:21,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:21,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595279057] [2025-01-09 17:20:21,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595279057] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:20:21,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25451730] [2025-01-09 17:20:21,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:21,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:20:21,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:20:21,154 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 17:20:21,155 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 17:20:25,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 17:20:25,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 17:20:25,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:25,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:26,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-09 17:20:26,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:20:26,544 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 17:20:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-09 17:20:27,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:20:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25451730] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:27,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:20:27,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-01-09 17:20:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42588638] [2025-01-09 17:20:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:27,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 17:20:27,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:27,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 17:20:27,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:20:27,951 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:20:34,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:20:34,193 INFO L93 Difference]: Finished difference Result 390 states and 481 transitions. [2025-01-09 17:20:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 17:20:34,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2025-01-09 17:20:34,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:20:34,200 INFO L225 Difference]: With dead ends: 390 [2025-01-09 17:20:34,200 INFO L226 Difference]: Without dead ends: 244 [2025-01-09 17:20:34,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-01-09 17:20:34,201 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 150 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:20:34,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1670 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2025-01-09 17:20:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-01-09 17:20:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-01-09 17:20:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (63), 57 states have call predecessors, (63), 56 states have call successors, (63) [2025-01-09 17:20:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 294 transitions. [2025-01-09 17:20:34,225 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 294 transitions. Word has length 140 [2025-01-09 17:20:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:20:34,226 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 294 transitions. [2025-01-09 17:20:34,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:20:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 294 transitions. [2025-01-09 17:20:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 17:20:34,227 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:20:34,227 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:20:34,243 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 17:20:34,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:20:34,428 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:20:34,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:20:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash 209357336, now seen corresponding path program 1 times [2025-01-09 17:20:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:20:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058040041] [2025-01-09 17:20:34,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:38,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:20:38,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:20:38,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:38,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-01-09 17:20:41,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058040041] [2025-01-09 17:20:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058040041] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:20:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839469947] [2025-01-09 17:20:41,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:41,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:20:41,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:20:41,082 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 17:20:41,083 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 17:20:45,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:20:45,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:20:45,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:45,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:45,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 4493 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-01-09 17:20:45,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:20:46,733 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 17:20:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-09 17:20:48,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:20:48,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839469947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:48,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:20:48,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 18 [2025-01-09 17:20:48,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947053998] [2025-01-09 17:20:48,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:48,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 17:20:48,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:48,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 17:20:48,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2025-01-09 17:20:48,365 INFO L87 Difference]: Start difference. First operand 240 states and 294 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-01-09 17:20:52,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:21:00,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:21:04,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:21:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:21:05,927 INFO L93 Difference]: Finished difference Result 396 states and 478 transitions. [2025-01-09 17:21:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 17:21:05,928 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 141 [2025-01-09 17:21:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:21:05,930 INFO L225 Difference]: With dead ends: 396 [2025-01-09 17:21:05,930 INFO L226 Difference]: Without dead ends: 272 [2025-01-09 17:21:05,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2025-01-09 17:21:05,932 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 143 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 25 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:21:05,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1742 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2025-01-09 17:21:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2025-01-09 17:21:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 264. [2025-01-09 17:21:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 171 states have (on average 1.1461988304093567) internal successors, (196), 174 states have internal predecessors, (196), 60 states have call successors, (60), 30 states have call predecessors, (60), 32 states have return successors, (60), 60 states have call predecessors, (60), 58 states have call successors, (60) [2025-01-09 17:21:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 316 transitions. [2025-01-09 17:21:05,950 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 316 transitions. Word has length 141 [2025-01-09 17:21:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:21:05,951 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 316 transitions. [2025-01-09 17:21:05,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2025-01-09 17:21:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 316 transitions. [2025-01-09 17:21:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 17:21:05,952 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:21:05,952 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:21:05,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:21:06,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:21:06,153 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:21:06,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:21:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1905134860, now seen corresponding path program 1 times [2025-01-09 17:21:06,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:21:06,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319283274] [2025-01-09 17:21:06,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:21:06,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:21:09,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 17:21:10,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 17:21:10,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:21:10,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:21:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-01-09 17:21:10,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:21:10,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319283274] [2025-01-09 17:21:10,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319283274] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:21:10,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601083573] [2025-01-09 17:21:10,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:21:10,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:21:10,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:21:10,774 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 17:21:10,776 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