./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6fdbc9f5812572f3ff7492afd142b4f5751632b8950cba79e5e9d1094b4bf8c2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:52:24,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:52:24,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:52:24,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:52:24,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:52:24,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:52:24,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:52:24,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:52:24,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:52:24,978 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:52:24,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:52:24,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:52:24,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:52:24,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:52:24,979 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:52:24,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:52:24,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:52:24,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:52:24,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:52:24,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:52:24,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:52:24,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:52:24,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:52:24,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:24,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:52:24,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:52:24,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:52:24,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:52:24,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:52:24,983 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/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 -> 6fdbc9f5812572f3ff7492afd142b4f5751632b8950cba79e5e9d1094b4bf8c2 [2025-03-04 02:52:25,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:52:25,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:52:25,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:52:25,238 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:52:25,238 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:52:25,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2025-03-04 02:52:26,439 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e76c1b13/a6471ca0bb334f0bad46190185c89cb0/FLAG33dff68fc [2025-03-04 02:52:26,905 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:52:26,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2025-03-04 02:52:26,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e76c1b13/a6471ca0bb334f0bad46190185c89cb0/FLAG33dff68fc [2025-03-04 02:52:26,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e76c1b13/a6471ca0bb334f0bad46190185c89cb0 [2025-03-04 02:52:26,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:52:26,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:52:26,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:26,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:52:26,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:52:26,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:26" (1/1) ... [2025-03-04 02:52:26,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1d70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:26, skipping insertion in model container [2025-03-04 02:52:26,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:26" (1/1) ... [2025-03-04 02:52:27,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:52:27,302 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2025-03-04 02:52:27,310 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2025-03-04 02:52:28,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,166 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,121 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,122 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,191 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[227611,227624] [2025-03-04 02:52:29,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:29,213 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:52:29,221 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2025-03-04 02:52:29,221 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2025-03-04 02:52:29,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-04 02:52:29,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,428 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,429 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,439 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,439 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,439 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,454 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[227611,227624] [2025-03-04 02:52:29,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:29,602 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:52:29,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29 WrapperNode [2025-03-04 02:52:29,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:29,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:29,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:52:29,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:52:29,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,722 INFO L138 Inliner]: procedures = 763, calls = 2441, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 623 [2025-03-04 02:52:29,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:29,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:52:29,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:52:29,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:52:29,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,813 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 247, 3, 51, 2, 23, 5, 6]. 73 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 6, 0, 9, 0, 0, 5, 0]. The 249 writes are split as follows [0, 233, 1, 11, 1, 1, 0, 2]. [2025-03-04 02:52:29,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,834 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:52:29,867 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:52:29,867 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:52:29,867 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:52:29,868 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:29,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:29,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 02:52:29,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 02:52:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-04 02:52:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-04 02:52:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-04 02:52:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-04 02:52:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:52:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:52:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:52:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:52:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2025-03-04 02:52:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2025-03-04 02:52:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-04 02:52:29,917 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-04 02:52:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:52:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-04 02:52:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:52:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:52:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:52:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-03-04 02:52:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-03-04 02:52:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-04 02:52:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:52:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:52:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:52:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:52:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:52:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:52:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:52:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:52:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:52:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-04 02:52:29,923 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-04 02:52:30,239 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:52:30,240 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:52:30,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:52:30,297 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 02:52:30,299 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:52:30,437 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume false; [2025-03-04 02:52:30,437 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume !false; [2025-03-04 02:52:30,437 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-2: havoc #t~mem1400.base, #t~mem1400.offset;havoc #t~mem1401.base, #t~mem1401.offset;havoc #t~mem1402.base, #t~mem1402.offset;havoc #t~mem1403;havoc #t~mem1404;havoc #t~mem1405;havoc #t~mem1406;havoc #t~mem1407.base, #t~mem1407.offset;havoc #t~mem1408.base, #t~mem1408.offset; [2025-03-04 02:52:30,551 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-04 02:52:30,611 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-04 02:52:30,644 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-04 02:52:30,657 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-04 02:52:36,192 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:52:36,253 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2025-03-04 02:52:36,254 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:52:36,271 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:52:36,273 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:52:36,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:36 BoogieIcfgContainer [2025-03-04 02:52:36,274 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:52:36,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:52:36,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:52:36,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:52:36,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:52:26" (1/3) ... [2025-03-04 02:52:36,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742f573c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:36, skipping insertion in model container [2025-03-04 02:52:36,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (2/3) ... [2025-03-04 02:52:36,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742f573c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:36, skipping insertion in model container [2025-03-04 02:52:36,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:36" (3/3) ... [2025-03-04 02:52:36,281 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness-1.i [2025-03-04 02:52:36,292 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:52:36,294 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_begin_harness-1.i that has 25 procedures, 203 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-03-04 02:52:36,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:52:36,344 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;@42837da8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:52:36,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:52:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-04 02:52:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-04 02:52:36,356 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:52:36,357 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2025-03-04 02:52:36,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:52:36,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:52:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 42316401, now seen corresponding path program 1 times [2025-03-04 02:52:36,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:52:36,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291604440] [2025-03-04 02:52:36,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:36,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:52:40,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-04 02:52:41,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-04 02:52:41,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:41,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-04 02:52:41,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:52:41,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291604440] [2025-03-04 02:52:41,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291604440] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:52:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513166087] [2025-03-04 02:52:41,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:41,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:52:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:41,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:52:41,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:52:46,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-04 02:52:46,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-04 02:52:46,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:46,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:46,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 4547 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:52:46,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:52:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-04 02:52:46,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:52:46,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513166087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:52:46,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:52:46,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:52:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653688280] [2025-03-04 02:52:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:52:46,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:52:46,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:52:46,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:52:46,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:52:46,905 INFO L87 Difference]: Start difference. First operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:52:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:52:46,948 INFO L93 Difference]: Finished difference Result 341 states and 476 transitions. [2025-03-04 02:52:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:52:46,952 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2025-03-04 02:52:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:52:46,958 INFO L225 Difference]: With dead ends: 341 [2025-03-04 02:52:46,959 INFO L226 Difference]: Without dead ends: 168 [2025-03-04 02:52:46,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:52:46,964 INFO L435 NwaCegarLoop]: 220 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, 220 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 [2025-03-04 02:52:46,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:52:46,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-04 02:52:46,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-03-04 02:52:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 111 states have internal predecessors, (136), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 02:52:47,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2025-03-04 02:52:47,006 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 149 [2025-03-04 02:52:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:52:47,006 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2025-03-04 02:52:47,006 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:52:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2025-03-04 02:52:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-04 02:52:47,009 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:52:47,009 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2025-03-04 02:52:47,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:52:47,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:52:47,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:52:47,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:52:47,210 INFO L85 PathProgramCache]: Analyzing trace with hash 906215394, now seen corresponding path program 1 times [2025-03-04 02:52:47,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:52:47,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662282934] [2025-03-04 02:52:47,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:52:51,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-04 02:52:51,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 02:52:51,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:51,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-04 02:52:52,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:52:52,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662282934] [2025-03-04 02:52:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662282934] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:52:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334318443] [2025-03-04 02:52:52,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:52,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:52:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:52,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:52:52,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:52:56,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-04 02:52:57,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 02:52:57,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:57,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:57,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:52:57,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-04 02:53:00,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 02:53:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-04 02:53:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334318443] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-04 02:53:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2025-03-04 02:53:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975697093] [2025-03-04 02:53:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:04,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:53:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:04,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:53:04,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:53:04,165 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:53:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:53:06,969 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2025-03-04 02:53:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:53:06,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 155 [2025-03-04 02:53:06,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:53:06,973 INFO L225 Difference]: With dead ends: 246 [2025-03-04 02:53:06,973 INFO L226 Difference]: Without dead ends: 176 [2025-03-04 02:53:06,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-04 02:53:06,974 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 214 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-04 02:53:06,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 881 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-04 02:53:06,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-04 02:53:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-03-04 02:53:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-04 02:53:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2025-03-04 02:53:06,990 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 155 [2025-03-04 02:53:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:53:06,990 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2025-03-04 02:53:06,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:53:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2025-03-04 02:53:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 02:53:06,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:53:06,992 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2025-03-04 02:53:07,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:53:07,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:53:07,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:53:07,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:53:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash 121214282, now seen corresponding path program 1 times [2025-03-04 02:53:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:53:07,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651714837] [2025-03-04 02:53:07,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:07,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:53:11,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 02:53:11,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 02:53:11,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:11,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-04 02:53:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:53:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651714837] [2025-03-04 02:53:12,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651714837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697965164] [2025-03-04 02:53:12,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:12,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:12,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:53:12,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:53:16,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 02:53:16,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 02:53:16,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:16,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:16,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 4577 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:53:16,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-04 02:53:16,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:53:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697965164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:53:16,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:53:16,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-04 02:53:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323293003] [2025-03-04 02:53:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:16,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:53:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:16,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:53:16,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:53:16,966 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:53:17,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:53:17,177 INFO L93 Difference]: Finished difference Result 333 states and 426 transitions. [2025-03-04 02:53:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:53:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 156 [2025-03-04 02:53:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:53:17,181 INFO L225 Difference]: With dead ends: 333 [2025-03-04 02:53:17,181 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:53:17,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:53:17,182 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:53:17,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 840 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:53:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:53:17,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:53:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 117 states have internal predecessors, (141), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2025-03-04 02:53:17,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 222 transitions. [2025-03-04 02:53:17,196 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 222 transitions. Word has length 156 [2025-03-04 02:53:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:53:17,197 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 222 transitions. [2025-03-04 02:53:17,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:53:17,197 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 222 transitions. [2025-03-04 02:53:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-04 02:53:17,200 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:53:17,201 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:53:17,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:53:17,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:17,401 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:53:17,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:53:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2105244694, now seen corresponding path program 1 times [2025-03-04 02:53:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:53:17,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045925644] [2025-03-04 02:53:17,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:17,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:53:21,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-04 02:53:21,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-04 02:53:21,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:21,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-04 02:53:24,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:53:24,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045925644] [2025-03-04 02:53:24,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045925644] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:24,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890257628] [2025-03-04 02:53:24,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:24,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:24,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:24,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:53:24,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:53:28,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-04 02:53:29,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-04 02:53:29,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:29,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:29,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 4585 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-04 02:53:29,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:30,670 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 [2025-03-04 02:53:37,486 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 22 treesize of output 1 [2025-03-04 02:53:37,539 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 18 treesize of output 7 [2025-03-04 02:53:39,666 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 20 treesize of output 12 [2025-03-04 02:53:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-04 02:53:42,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:53:42,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890257628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:53:42,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:53:42,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [10] total 26 [2025-03-04 02:53:42,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215345295] [2025-03-04 02:53:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:42,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-04 02:53:42,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:42,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-04 02:53:42,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2025-03-04 02:53:42,254 INFO L87 Difference]: Start difference. First operand 175 states and 222 transitions. Second operand has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2025-03-04 02:53:46,308 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 [] [2025-03-04 02:53:50,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 02:53:55,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 02:53:59,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []