./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_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 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:48:40,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:48:40,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:48:40,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:48:40,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:48:40,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:48:40,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:48:40,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:48:40,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:48:40,752 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:48:40,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:48:40,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:48:40,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:48:40,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:48:40,754 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:48:40,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:48:40,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:48:40,755 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:48:40,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:48:40,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:48:40,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:48:40,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:48:40,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:40,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:48:40,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:48:40,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:48:40,758 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 -> 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 [2025-02-08 01:48:41,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:48:41,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:48:41,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:48:41,051 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:48:41,051 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:48:41,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-02-08 01:48:42,329 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd3075f98/b00e2fa0d1f94ae4b3f84a27b57f5717/FLAGf6e2daea9 [2025-02-08 01:48:42,891 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:48:42,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-02-08 01:48:42,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd3075f98/b00e2fa0d1f94ae4b3f84a27b57f5717/FLAGf6e2daea9 [2025-02-08 01:48:42,964 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd3075f98/b00e2fa0d1f94ae4b3f84a27b57f5717 [2025-02-08 01:48:42,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:48:42,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:48:42,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:42,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:48:42,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:48:42,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:42" (1/1) ... [2025-02-08 01:48:42,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526c2332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:42, skipping insertion in model container [2025-02-08 01:48:42,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:42" (1/1) ... [2025-02-08 01:48:43,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:48:43,337 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[4497,4510] [2025-02-08 01:48:43,348 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[4557,4570] [2025-02-08 01:48:44,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,920 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,921 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,955 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,955 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,966 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:44,996 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[228637,228650] [2025-02-08 01:48:44,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:45,021 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:48:45,031 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[4497,4510] [2025-02-08 01:48:45,032 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[4557,4570] [2025-02-08 01:48:45,069 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,077 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-02-08 01:48:45,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:45,277 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i[228637,228650] [2025-02-08 01:48:45,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:45,527 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:48:45,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45 WrapperNode [2025-02-08 01:48:45,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:45,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:45,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:48:45,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:48:45,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,702 INFO L138 Inliner]: procedures = 764, calls = 2440, calls flagged for inlining = 72, calls inlined = 16, statements flattened = 716 [2025-02-08 01:48:45,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:45,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:48:45,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:48:45,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:48:45,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,800 INFO L175 MemorySlicer]: Split 304 memory accesses to 8 slices as follows [238, 2, 1, 2, 2, 37, 6, 16]. 78 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 5, 0]. The 243 writes are split as follows [232, 0, 1, 1, 1, 6, 0, 2]. [2025-02-08 01:48:45,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,835 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:48:45,860 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:48:45,860 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:48:45,860 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:48:45,861 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (1/1) ... [2025-02-08 01:48:45,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:45,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:48:45,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:48:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-02-08 01:48:45,924 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-02-08 01:48:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-08 01:48:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-08 01:48:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-08 01:48:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-08 01:48:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-08 01:48:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:48:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:48:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:48:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:48:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:48:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:48:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:48:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 01:48:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:48:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:48:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-08 01:48:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:48:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:48:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-08 01:48:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-08 01:48:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:48:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:48:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:48:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:48:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:48:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:48:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-08 01:48:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:48:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 01:48:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-08 01:48:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-08 01:48:46,312 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:48:46,315 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:48:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:48:46,400 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10096: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-08 01:48:46,464 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:48:46,466 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:48:46,479 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~ret691.base, #t~ret691.offset; [2025-02-08 01:48:46,509 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-02-08 01:48:46,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:48:46,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-08 01:48:46,639 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-08 01:48:52,230 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6821: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-02-08 01:48:52,230 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-08 01:48:52,376 INFO L? ?]: Removed 153 outVars from TransFormulas that were not future-live. [2025-02-08 01:48:52,376 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:48:52,404 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:48:52,404 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:48:52,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:52 BoogieIcfgContainer [2025-02-08 01:48:52,405 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:48:52,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:48:52,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:48:52,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:48:52,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:48:42" (1/3) ... [2025-02-08 01:48:52,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad9aaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:52, skipping insertion in model container [2025-02-08 01:48:52,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:45" (2/3) ... [2025-02-08 01:48:52,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad9aaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:52, skipping insertion in model container [2025-02-08 01:48:52,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:52" (3/3) ... [2025-02-08 01:48:52,415 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness_negated.i [2025-02-08 01:48:52,430 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:48:52,431 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clean_up_harness_negated.i that has 20 procedures, 188 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-08 01:48:52,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:48:52,511 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;@1248c717, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:48:52,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:48:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 121 states have internal predecessors, (141), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-08 01:48:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:48:52,531 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:48:52,532 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:48:52,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:48:52,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:48:52,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2096300848, now seen corresponding path program 1 times [2025-02-08 01:48:52,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:48:52,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532482563] [2025-02-08 01:48:52,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:52,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:48:58,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:48:58,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:48:58,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:48:58,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:48:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-02-08 01:48:59,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:48:59,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532482563] [2025-02-08 01:48:59,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532482563] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:48:59,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64348304] [2025-02-08 01:48:59,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:48:59,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:59,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:48:59,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:49:04,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:49:04,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:49:04,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:04,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:04,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:49:04,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-02-08 01:49:04,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:49:04,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64348304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:04,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:49:04,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:49:04,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592540233] [2025-02-08 01:49:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:04,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:49:04,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:04,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:49:04,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:49:04,873 INFO L87 Difference]: Start difference. First operand has 188 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 121 states have internal predecessors, (141), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:04,924 INFO L93 Difference]: Finished difference Result 372 states and 496 transitions. [2025-02-08 01:49:04,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:49:04,926 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2025-02-08 01:49:04,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:04,934 INFO L225 Difference]: With dead ends: 372 [2025-02-08 01:49:04,934 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:04,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:49:04,940 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:04,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:49:04,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.146788990825688) internal successors, (125), 110 states have internal predecessors, (125), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:04,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2025-02-08 01:49:04,984 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 154 [2025-02-08 01:49:04,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:04,985 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2025-02-08 01:49:04,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:04,986 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2025-02-08 01:49:04,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:49:04,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:04,989 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:05,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:49:05,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:49:05,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:05,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1070375664, now seen corresponding path program 1 times [2025-02-08 01:49:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:05,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685035186] [2025-02-08 01:49:05,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:09,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:49:09,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:49:09,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:09,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2025-02-08 01:49:11,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:11,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685035186] [2025-02-08 01:49:11,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685035186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:11,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:11,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:11,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009950432] [2025-02-08 01:49:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:11,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:11,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:11,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:11,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:11,066 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:11,185 INFO L93 Difference]: Finished difference Result 315 states and 391 transitions. [2025-02-08 01:49:11,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:11,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2025-02-08 01:49:11,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:11,188 INFO L225 Difference]: With dead ends: 315 [2025-02-08 01:49:11,190 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:11,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:11,194 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:11,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 627 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:11,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.1376146788990826) internal successors, (124), 110 states have internal predecessors, (124), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2025-02-08 01:49:11,220 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 154 [2025-02-08 01:49:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:11,220 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2025-02-08 01:49:11,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:49:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2025-02-08 01:49:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-08 01:49:11,226 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:11,227 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:11,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:49:11,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:11,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash 447389071, now seen corresponding path program 1 times [2025-02-08 01:49:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:11,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976328761] [2025-02-08 01:49:11,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:11,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:15,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:15,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:15,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:15,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2025-02-08 01:49:16,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976328761] [2025-02-08 01:49:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976328761] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:16,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:16,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:16,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996838963] [2025-02-08 01:49:16,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:16,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:16,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:16,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:16,410 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:49:16,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:16,566 INFO L93 Difference]: Finished difference Result 315 states and 390 transitions. [2025-02-08 01:49:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:16,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2025-02-08 01:49:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:16,569 INFO L225 Difference]: With dead ends: 315 [2025-02-08 01:49:16,572 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:49:16,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:16,574 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:16,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:49:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-08 01:49:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.128440366972477) internal successors, (123), 110 states have internal predecessors, (123), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:16,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2025-02-08 01:49:16,593 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 165 [2025-02-08 01:49:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:16,594 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2025-02-08 01:49:16,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:49:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2025-02-08 01:49:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-08 01:49:16,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:16,598 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:16,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:49:16,598 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:16,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash -834783215, now seen corresponding path program 1 times [2025-02-08 01:49:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:16,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369796505] [2025-02-08 01:49:16,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:16,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:20,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:20,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:20,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:20,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-02-08 01:49:24,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:24,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369796505] [2025-02-08 01:49:24,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369796505] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:24,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092190824] [2025-02-08 01:49:24,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:24,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:24,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:24,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:49:24,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:49:29,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 01:49:29,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 01:49:29,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:29,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:29,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 4519 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-02-08 01:49:29,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:30,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 01:49:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-02-08 01:49:35,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:49:35,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092190824] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:35,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:49:35,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 13 [2025-02-08 01:49:35,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732467868] [2025-02-08 01:49:35,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:35,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 01:49:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:35,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 01:49:35,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:49:35,654 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2025-02-08 01:49:39,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:49:47,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 01:49:47,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:47,756 INFO L93 Difference]: Finished difference Result 295 states and 355 transitions. [2025-02-08 01:49:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:49:47,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 165 [2025-02-08 01:49:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:47,759 INFO L225 Difference]: With dead ends: 295 [2025-02-08 01:49:47,759 INFO L226 Difference]: Without dead ends: 195 [2025-02-08 01:49:47,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 144 SyntacticMatches, 19 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:49:47,761 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 109 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:47,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1007 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 254 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2025-02-08 01:49:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-02-08 01:49:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2025-02-08 01:49:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 125 states have (on average 1.128) internal successors, (141), 126 states have internal predecessors, (141), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 01:49:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 230 transitions. [2025-02-08 01:49:47,777 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 230 transitions. Word has length 165 [2025-02-08 01:49:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:47,777 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 230 transitions. [2025-02-08 01:49:47,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2025-02-08 01:49:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 230 transitions. [2025-02-08 01:49:47,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-02-08 01:49:47,780 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:47,780 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:47,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:49:47,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:47,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:47,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1291673162, now seen corresponding path program 1 times [2025-02-08 01:49:47,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:47,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293126626] [2025-02-08 01:49:47,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:51,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-02-08 01:49:51,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-02-08 01:49:51,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:51,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-02-08 01:49:55,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:55,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293126626] [2025-02-08 01:49:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293126626] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819022409] [2025-02-08 01:49:55,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:55,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:55,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:55,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:49:55,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:50:00,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-02-08 01:50:00,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-02-08 01:50:00,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:50:00,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:50:00,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 4544 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-08 01:50:00,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:50:01,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 01:50:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 01:50:03,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:50:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819022409] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:50:03,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:50:03,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-02-08 01:50:03,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054754228] [2025-02-08 01:50:03,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:50:03,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 01:50:03,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:50:03,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 01:50:03,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:50:03,707 INFO L87 Difference]: Start difference. First operand 193 states and 230 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27)