./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_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 dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:48:51,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:48:51,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:48:51,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:48:51,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:48:51,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:48:51,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:48:51,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:48:51,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:48:51,174 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:48:51,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:48:51,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:48:51,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:48:51,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:48:51,175 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:48:51,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:48:51,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:48:51,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:48:51,176 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:48:51,177 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:51,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:48:51,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:48:51,177 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 -> dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 [2025-02-08 01:48:51,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:48:51,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:48:51,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:48:51,400 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:48:51,400 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:48:51,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-02-08 01:48:52,541 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc764f086/77b716042b164b6dacc7bf128ced2401/FLAG0a6912b8d [2025-02-08 01:48:52,957 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:48:52,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-02-08 01:48:52,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc764f086/77b716042b164b6dacc7bf128ced2401/FLAG0a6912b8d [2025-02-08 01:48:53,110 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc764f086/77b716042b164b6dacc7bf128ced2401 [2025-02-08 01:48:53,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:48:53,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:48:53,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:53,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:48:53,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:48:53,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:53" (1/1) ... [2025-02-08 01:48:53,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563c25a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:53, skipping insertion in model container [2025-02-08 01:48:53,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:53" (1/1) ... [2025-02-08 01:48:53,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:48:53,433 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2025-02-08 01:48:53,440 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2025-02-08 01:48:54,093 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,093 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,881 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2025-02-08 01:48:54,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:54,907 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:48:54,917 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2025-02-08 01:48:54,922 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2025-02-08 01:48:54,959 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,959 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,959 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,965 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:54,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-02-08 01:48:55,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:55,122 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2025-02-08 01:48:55,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:55,289 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:48:55,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55 WrapperNode [2025-02-08 01:48:55,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:55,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:55,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:48:55,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:48:55,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,400 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-02-08 01:48:55,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:55,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:48:55,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:48:55,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:48:55,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,460 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [238, 1, 2, 8, 34, 2, 5, 2]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 0, 2, 0, 0, 0, 5, 0]. The 241 writes are split as follows [232, 1, 0, 1, 5, 1, 0, 1]. [2025-02-08 01:48:55,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,482 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,492 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:48:55,518 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:48:55,518 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:48:55,518 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:48:55,519 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (1/1) ... [2025-02-08 01:48:55,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:55,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:55,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:48:55,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-02-08 01:48:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:48:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:48:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:48:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:48:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:48:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:48:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:48:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:48:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:48:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:48:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:48:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-08 01:48:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 01:48:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-08 01:48:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-08 01:48:55,868 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:48:55,870 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:48:55,908 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:48:55,923 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10096: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-08 01:48:55,978 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:48:55,979 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:48:55,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~ret691.base, #t~ret691.offset; [2025-02-08 01:48:56,015 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-02-08 01:48:56,020 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:48:56,130 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-08 01:48:56,140 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-08 01:49:01,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-08 01:49:01,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6821: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-02-08 01:49:01,741 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2025-02-08 01:49:01,741 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:49:01,756 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:49:01,759 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:49:01,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:49:01 BoogieIcfgContainer [2025-02-08 01:49:01,759 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:49:01,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:49:01,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:49:01,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:49:01,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:48:53" (1/3) ... [2025-02-08 01:49:01,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad8daae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:49:01, skipping insertion in model container [2025-02-08 01:49:01,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:55" (2/3) ... [2025-02-08 01:49:01,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad8daae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:49:01, skipping insertion in model container [2025-02-08 01:49:01,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:49:01" (3/3) ... [2025-02-08 01:49:01,767 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness_negated.i [2025-02-08 01:49:01,780 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:49:01,783 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness_negated.i that has 19 procedures, 167 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-08 01:49:01,851 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:49:01,860 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;@1f0ea750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:49:01,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:49:01,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 107 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-02-08 01:49:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 01:49:01,877 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:01,877 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:01,878 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:01,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1776458748, now seen corresponding path program 1 times [2025-02-08 01:49:01,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:01,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300071202] [2025-02-08 01:49:01,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:01,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:06,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:49:06,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:49:06,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:06,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-02-08 01:49:06,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300071202] [2025-02-08 01:49:06,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300071202] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177105505] [2025-02-08 01:49:06,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:06,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:06,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:49:06,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:49:11,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:49:11,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:49:11,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:11,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:11,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 4358 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:49:11,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-02-08 01:49:11,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:49:11,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177105505] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:11,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:49:11,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:49:11,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161043159] [2025-02-08 01:49:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:11,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:49:11,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:11,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:49:11,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:49:11,653 INFO L87 Difference]: Start difference. First operand has 167 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 107 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:49:11,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:11,690 INFO L93 Difference]: Finished difference Result 330 states and 435 transitions. [2025-02-08 01:49:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:49:11,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2025-02-08 01:49:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:11,698 INFO L225 Difference]: With dead ends: 330 [2025-02-08 01:49:11,698 INFO L226 Difference]: Without dead ends: 153 [2025-02-08 01:49:11,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:49:11,705 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:11,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:49:11,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-02-08 01:49:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-02-08 01:49:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 97 states have internal predecessors, (110), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-08 01:49:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 187 transitions. [2025-02-08 01:49:11,749 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 187 transitions. Word has length 137 [2025-02-08 01:49:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:11,751 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 187 transitions. [2025-02-08 01:49:11,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:49:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 187 transitions. [2025-02-08 01:49:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 01:49:11,756 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:11,757 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:11,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:49:11,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:49:11,958 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:11,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1711535426, now seen corresponding path program 1 times [2025-02-08 01:49:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:11,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41253110] [2025-02-08 01:49:11,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:15,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:49:15,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:49:15,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:15,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-02-08 01:49:16,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:16,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41253110] [2025-02-08 01:49:16,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41253110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:16,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:16,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455376888] [2025-02-08 01:49:16,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:16,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:16,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:16,983 INFO L87 Difference]: Start difference. First operand 153 states and 187 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:49:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:17,095 INFO L93 Difference]: Finished difference Result 275 states and 337 transitions. [2025-02-08 01:49:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:17,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2025-02-08 01:49:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:17,097 INFO L225 Difference]: With dead ends: 275 [2025-02-08 01:49:17,097 INFO L226 Difference]: Without dead ends: 153 [2025-02-08 01:49:17,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:17,098 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:17,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 546 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-02-08 01:49:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-02-08 01:49:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 97 states have internal predecessors, (109), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-08 01:49:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 186 transitions. [2025-02-08 01:49:17,112 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 186 transitions. Word has length 137 [2025-02-08 01:49:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:17,113 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 186 transitions. [2025-02-08 01:49:17,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:49:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 186 transitions. [2025-02-08 01:49:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-08 01:49:17,117 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:17,117 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:17,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:49:17,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1318367180, now seen corresponding path program 1 times [2025-02-08 01:49:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:17,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452496886] [2025-02-08 01:49:17,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:21,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-08 01:49:21,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-08 01:49:21,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:21,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-02-08 01:49:21,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:21,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452496886] [2025-02-08 01:49:21,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452496886] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:49:21,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:49:21,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:49:21,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348446752] [2025-02-08 01:49:21,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:49:21,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:49:21,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:21,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:49:21,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:21,866 INFO L87 Difference]: Start difference. First operand 153 states and 186 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-08 01:49:21,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:49:21,960 INFO L93 Difference]: Finished difference Result 275 states and 336 transitions. [2025-02-08 01:49:21,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:49:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2025-02-08 01:49:21,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:49:21,964 INFO L225 Difference]: With dead ends: 275 [2025-02-08 01:49:21,965 INFO L226 Difference]: Without dead ends: 153 [2025-02-08 01:49:21,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:49:21,967 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:49:21,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:49:21,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-02-08 01:49:21,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-02-08 01:49:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.125) internal successors, (108), 97 states have internal predecessors, (108), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-08 01:49:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 185 transitions. [2025-02-08 01:49:21,981 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 185 transitions. Word has length 148 [2025-02-08 01:49:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:49:21,981 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 185 transitions. [2025-02-08 01:49:21,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-08 01:49:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 185 transitions. [2025-02-08 01:49:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-08 01:49:21,982 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:49:21,983 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:49:21,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:49:21,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:49:21,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:49:21,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1109891442, now seen corresponding path program 1 times [2025-02-08 01:49:21,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:49:21,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080258311] [2025-02-08 01:49:21,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:21,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:25,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-08 01:49:25,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-08 01:49:25,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:25,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:29,218 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-08 01:49:29,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:29,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080258311] [2025-02-08 01:49:29,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080258311] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:29,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759637507] [2025-02-08 01:49:29,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:29,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:29,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:29,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:49:29,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:49:33,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-08 01:49:33,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-08 01:49:33,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:33,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:33,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 4453 conjuncts, 109 conjuncts are in the unsatisfiable core [2025-02-08 01:49:33,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:37,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 01:49:37,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2025-02-08 01:49:37,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 01:49:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:49:41,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 23 [2025-02-08 01:49:43,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:49:43,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 23 [2025-02-08 01:49:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 148 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-08 01:49:47,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:49:50,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759637507] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:50,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:49:50,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 20] total 27 [2025-02-08 01:49:50,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400055214] [2025-02-08 01:49:50,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 01:49:50,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-08 01:49:50,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:49:50,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-08 01:49:50,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2025-02-08 01:49:50,607 INFO L87 Difference]: Start difference. First operand 153 states and 185 transitions. Second operand has 27 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 11 states have call successors, (42), 3 states have call predecessors, (42), 10 states have return successors, (40), 11 states have call predecessors, (40), 11 states have call successors, (40) [2025-02-08 01:49:54,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:49:59,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:50:03,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:50:08,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []