./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_find_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 f75d0ef33a31287833e190b2032d34d4d62b29cbbc430e756e509abfe84aec7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:12:22,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:12:22,923 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:12:22,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:12:22,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:12:22,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:12:22,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:12:22,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:12:22,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:12:22,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:12:22,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:12:22,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:12:22,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:12:22,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:12:22,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:12:22,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:22,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:12:22,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:12:22,947 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 -> f75d0ef33a31287833e190b2032d34d4d62b29cbbc430e756e509abfe84aec7a [2025-02-06 05:12:23,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:12:23,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:12:23,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:12:23,220 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:12:23,220 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:12:23,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness_negated.i [2025-02-06 05:12:24,413 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/326f52d39/6396e02c62dc4648805bd82eacbed4f2/FLAG89db89ab8 [2025-02-06 05:12:24,890 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:12:24,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness_negated.i [2025-02-06 05:12:24,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/326f52d39/6396e02c62dc4648805bd82eacbed4f2/FLAG89db89ab8 [2025-02-06 05:12:24,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/326f52d39/6396e02c62dc4648805bd82eacbed4f2 [2025-02-06 05:12:24,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:12:24,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:12:24,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:24,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:12:24,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:12:24,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd6d3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24, skipping insertion in model container [2025-02-06 05:12:24,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:25,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:12:25,195 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_find_harness_negated.i[4493,4506] [2025-02-06 05:12:25,203 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_find_harness_negated.i[4553,4566] [2025-02-06 05:12:25,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,765 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,767 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,768 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,770 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,770 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:25,771 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,397 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,403 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,424 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,428 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,460 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_find_harness_negated.i[228314,228327] [2025-02-06 05:12:26,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:26,488 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:12:26,500 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_find_harness_negated.i[4493,4506] [2025-02-06 05:12:26,501 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_find_harness_negated.i[4553,4566] [2025-02-06 05:12:26,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-02-06 05:12:26,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,708 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,713 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,713 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,715 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,715 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:26,737 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_find_harness_negated.i[228314,228327] [2025-02-06 05:12:26,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:26,881 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:12:26,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26 WrapperNode [2025-02-06 05:12:26,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:26,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:26,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:12:26,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:12:26,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:26,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,021 INFO L138 Inliner]: procedures = 763, calls = 2450, calls flagged for inlining = 70, calls inlined = 20, statements flattened = 867 [2025-02-06 05:12:27,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:27,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:12:27,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:12:27,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:12:27,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,100 INFO L175 MemorySlicer]: Split 315 memory accesses to 12 slices as follows [238, 2, 2, 4, 3, 1, 3, 6, 6, 9, 36, 5]. 76 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5]. The 249 writes are split as follows [232, 0, 1, 3, 3, 1, 1, 2, 2, 1, 3, 0]. [2025-02-06 05:12:27,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,146 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:12:27,181 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:12:27,181 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:12:27,181 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:12:27,183 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (1/1) ... [2025-02-06 05:12:27,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:27,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:12:27,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-02-06 05:12:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2025-02-06 05:12:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2025-02-06 05:12:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:12:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:12:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:12:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:12:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:12:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:12:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:12:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:12:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:12:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2025-02-06 05:12:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2025-02-06 05:12:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:12:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:12:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:12:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:12:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2025-02-06 05:12:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:12:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:12:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:12:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:12:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:12:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:12:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:12:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_find [2025-02-06 05:12:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_find [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:12:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2025-02-06 05:12:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2025-02-06 05:12:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:12:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 05:12:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:12:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:12:27,563 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:12:27,565 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:12:27,601 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:12:27,639 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9104-1: assume false; [2025-02-06 05:12:27,640 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9104-1: assume !false; [2025-02-06 05:12:27,668 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:12:27,670 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:12:27,799 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9293: havoc #t~ret1201#1; [2025-02-06 05:12:27,819 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9376-1: assume false; [2025-02-06 05:12:27,819 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9376-1: assume !false; [2025-02-06 05:12:27,837 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc uninterpreted_hasher_#t~ret689#1; [2025-02-06 05:12:27,838 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9065-1: assume false; [2025-02-06 05:12:27,838 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9065-1: assume !false; [2025-02-06 05:12:27,885 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10069: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:12:27,918 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9956: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-06 05:12:27,937 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7328: havoc uninterpreted_equals_assert_inputs_nonnull_#t~ret687#1; [2025-02-06 05:12:27,937 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7271: havoc nondet_compare_#t~ret677#1; [2025-02-06 05:12:27,937 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-02-06 05:12:27,947 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9091: havoc #t~ret1140; [2025-02-06 05:12:27,964 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:12:27,974 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:12:33,059 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:12:33,059 INFO L1309 $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; [2025-02-06 05:12:33,059 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-06 05:12:33,121 INFO L? ?]: Removed 281 outVars from TransFormulas that were not future-live. [2025-02-06 05:12:33,121 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:12:33,136 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:12:33,137 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:12:33,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:33 BoogieIcfgContainer [2025-02-06 05:12:33,137 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:12:33,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:12:33,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:12:33,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:12:33,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:12:24" (1/3) ... [2025-02-06 05:12:33,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b1be24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:33, skipping insertion in model container [2025-02-06 05:12:33,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:26" (2/3) ... [2025-02-06 05:12:33,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b1be24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:33, skipping insertion in model container [2025-02-06 05:12:33,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:33" (3/3) ... [2025-02-06 05:12:33,144 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_find_harness_negated.i [2025-02-06 05:12:33,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:12:33,157 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_find_harness_negated.i that has 23 procedures, 267 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-06 05:12:33,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:12:33,213 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;@2c1ce985, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:12:33,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:12:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 176 states have internal predecessors, (219), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2025-02-06 05:12:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 05:12:33,230 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:33,231 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:33,232 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:33,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1008788979, now seen corresponding path program 1 times [2025-02-06 05:12:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323885622] [2025-02-06 05:12:33,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:37,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:38,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:38,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:38,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2025-02-06 05:12:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323885622] [2025-02-06 05:12:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323885622] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738928843] [2025-02-06 05:12:38,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:38,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:38,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:38,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:38,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:12:42,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:43,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:43,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:43,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:43,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 4655 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:12:43,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2025-02-06 05:12:43,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:43,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738928843] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:43,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:43,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:12:43,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474007817] [2025-02-06 05:12:43,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:43,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:12:43,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:43,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:12:43,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:43,452 INFO L87 Difference]: Start difference. First operand has 267 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 176 states have internal predecessors, (219), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 05:12:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:43,530 INFO L93 Difference]: Finished difference Result 528 states and 755 transitions. [2025-02-06 05:12:43,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:12:43,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 184 [2025-02-06 05:12:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:43,540 INFO L225 Difference]: With dead ends: 528 [2025-02-06 05:12:43,540 INFO L226 Difference]: Without dead ends: 260 [2025-02-06 05:12:43,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:43,547 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:43,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:12:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-02-06 05:12:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2025-02-06 05:12:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 170 states have internal predecessors, (206), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-02-06 05:12:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 341 transitions. [2025-02-06 05:12:43,592 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 341 transitions. Word has length 184 [2025-02-06 05:12:43,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:43,593 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 341 transitions. [2025-02-06 05:12:43,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 05:12:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 341 transitions. [2025-02-06 05:12:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 05:12:43,600 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:43,600 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:43,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 05:12:43,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:12:43,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:43,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:43,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1588939723, now seen corresponding path program 1 times [2025-02-06 05:12:43,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:43,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493052472] [2025-02-06 05:12:43,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:43,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:47,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:47,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:47,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:47,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:48,606 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 05:12:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493052472] [2025-02-06 05:12:48,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493052472] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261655428] [2025-02-06 05:12:48,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:48,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:48,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:48,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:48,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:12:53,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:53,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:53,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:53,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:53,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 4655 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:12:53,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-06 05:12:53,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261655428] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:53,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:53,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-02-06 05:12:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629478225] [2025-02-06 05:12:53,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:53,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:12:53,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:53,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:12:53,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:12:53,622 INFO L87 Difference]: Start difference. First operand 260 states and 341 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 05:12:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:53,995 INFO L93 Difference]: Finished difference Result 516 states and 676 transitions. [2025-02-06 05:12:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:12:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 184 [2025-02-06 05:12:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:53,998 INFO L225 Difference]: With dead ends: 516 [2025-02-06 05:12:53,998 INFO L226 Difference]: Without dead ends: 265 [2025-02-06 05:12:54,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:12:54,001 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 0 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:54,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1332 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 05:12:54,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2025-02-06 05:12:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2025-02-06 05:12:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 173 states have (on average 1.2138728323699421) internal successors, (210), 174 states have internal predecessors, (210), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (68), 68 states have call predecessors, (68), 67 states have call successors, (68) [2025-02-06 05:12:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 346 transitions. [2025-02-06 05:12:54,015 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 346 transitions. Word has length 184 [2025-02-06 05:12:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:54,015 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 346 transitions. [2025-02-06 05:12:54,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-06 05:12:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 346 transitions. [2025-02-06 05:12:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-02-06 05:12:54,019 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:54,019 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:54,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:12:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:54,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash 984558815, now seen corresponding path program 1 times [2025-02-06 05:12:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11042870] [2025-02-06 05:12:54,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:54,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:57,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-02-06 05:12:57,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-02-06 05:12:57,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:57,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2025-02-06 05:13:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11042870] [2025-02-06 05:13:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11042870] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102815] [2025-02-06 05:13:01,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:01,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:01,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:01,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:01,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:13:05,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-02-06 05:13:05,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-02-06 05:13:05,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:05,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:05,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 4663 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-02-06 05:13:05,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:06,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:13:14,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-02-06 05:13:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-02-06 05:13:15,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:15,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102815] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:15,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:15,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [10] total 18 [2025-02-06 05:13:15,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253528781] [2025-02-06 05:13:15,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:15,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 05:13:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:15,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 05:13:15,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:13:15,521 INFO L87 Difference]: Start difference. First operand 265 states and 346 transitions. Second operand has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2025-02-06 05:13:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:24,783 INFO L93 Difference]: Finished difference Result 490 states and 631 transitions. [2025-02-06 05:13:24,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 05:13:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 196 [2025-02-06 05:13:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:24,788 INFO L225 Difference]: With dead ends: 490 [2025-02-06 05:13:24,789 INFO L226 Difference]: Without dead ends: 325 [2025-02-06 05:13:24,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 162 SyntacticMatches, 27 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2025-02-06 05:13:24,791 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 259 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:24,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 3339 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2025-02-06 05:13:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-02-06 05:13:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2025-02-06 05:13:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 214 states have (on average 1.2009345794392523) internal successors, (257), 216 states have internal predecessors, (257), 74 states have call successors, (74), 31 states have call predecessors, (74), 34 states have return successors, (78), 75 states have call predecessors, (78), 73 states have call successors, (78) [2025-02-06 05:13:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 409 transitions. [2025-02-06 05:13:24,816 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 409 transitions. Word has length 196 [2025-02-06 05:13:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:24,817 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 409 transitions. [2025-02-06 05:13:24,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2025-02-06 05:13:24,817 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 409 transitions. [2025-02-06 05:13:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 05:13:24,820 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:24,820 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:13:24,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 05:13:25,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:25,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:25,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash 171871185, now seen corresponding path program 1 times [2025-02-06 05:13:25,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246902064] [2025-02-06 05:13:25,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:28,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:13:28,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:13:28,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:28,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2025-02-06 05:13:31,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:31,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246902064] [2025-02-06 05:13:31,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246902064] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:31,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047860903] [2025-02-06 05:13:31,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:31,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:31,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:31,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:31,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:13:36,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:13:36,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:13:36,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:36,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:36,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 4695 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 05:13:36,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:37,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:13:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2025-02-06 05:13:38,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:38,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047860903] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:38,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:38,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-02-06 05:13:38,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364142039] [2025-02-06 05:13:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:38,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 05:13:38,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:38,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 05:13:38,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-02-06 05:13:38,716 INFO L87 Difference]: Start difference. First operand 323 states and 409 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:13:46,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:46,022 INFO L93 Difference]: Finished difference Result 577 states and 747 transitions. [2025-02-06 05:13:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 05:13:46,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 203 [2025-02-06 05:13:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:46,027 INFO L225 Difference]: With dead ends: 577 [2025-02-06 05:13:46,027 INFO L226 Difference]: Without dead ends: 331 [2025-02-06 05:13:46,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:13:46,028 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 333 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:46,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 2197 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2025-02-06 05:13:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2025-02-06 05:13:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 328. [2025-02-06 05:13:46,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 218 states have (on average 1.201834862385321) internal successors, (262), 221 states have internal predecessors, (262), 74 states have call successors, (74), 31 states have call predecessors, (74), 35 states have return successors, (80), 75 states have call predecessors, (80), 73 states have call successors, (80) [2025-02-06 05:13:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 416 transitions. [2025-02-06 05:13:46,052 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 416 transitions. Word has length 203 [2025-02-06 05:13:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:46,053 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 416 transitions. [2025-02-06 05:13:46,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:13:46,053 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 416 transitions. [2025-02-06 05:13:46,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 05:13:46,054 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:46,055 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 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, 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] [2025-02-06 05:13:46,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:13:46,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:46,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:46,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash -462274383, now seen corresponding path program 1 times [2025-02-06 05:13:46,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:46,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997497740] [2025-02-06 05:13:46,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:46,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:50,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:13:50,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:13:50,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:50,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2025-02-06 05:13:51,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997497740] [2025-02-06 05:13:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997497740] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021171426] [2025-02-06 05:13:51,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:51,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:51,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:51,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:51,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process