./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_negated.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 c3fefd4a3fa45c7535dc41b0ccf3bb4989a6d3f39e95f31dc5e87197d363f726 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:11:08,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:11:08,404 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:11:08,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:11:08,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:11:08,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:11:08,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:11:08,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:11:08,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:11:08,431 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:11:08,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:11:08,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:11:08,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:11:08,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:11:08,433 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:11:08,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:11:08,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:11:08,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:11:08,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:11:08,434 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:11:08,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:08,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:11:08,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:11:08,435 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 -> c3fefd4a3fa45c7535dc41b0ccf3bb4989a6d3f39e95f31dc5e87197d363f726 [2025-03-17 07:11:08,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:11:08,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:11:08,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:11:08,644 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:11:08,645 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:11:08,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness_negated.i [2025-03-17 07:11:09,817 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e25d26c02/23c53b2213ef4c54bbfb3f0ee42ccd10/FLAGd35a7bf81 [2025-03-17 07:11:10,251 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:11:10,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness_negated.i [2025-03-17 07:11:10,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e25d26c02/23c53b2213ef4c54bbfb3f0ee42ccd10/FLAGd35a7bf81 [2025-03-17 07:11:10,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e25d26c02/23c53b2213ef4c54bbfb3f0ee42ccd10 [2025-03-17 07:11:10,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:11:10,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:11:10,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:10,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:11:10,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:11:10,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:10" (1/1) ... [2025-03-17 07:11:10,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78173795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:10, skipping insertion in model container [2025-03-17 07:11:10,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:10" (1/1) ... [2025-03-17 07:11:10,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:11:10,594 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_negated.i[4493,4506] [2025-03-17 07:11:10,601 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_negated.i[4553,4566] [2025-03-17 07:11:11,109 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,109 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,779 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,814 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_negated.i[227849,227862] [2025-03-17 07:11:11,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:11,837 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:11:11,846 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_negated.i[4493,4506] [2025-03-17 07:11:11,846 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_negated.i[4553,4566] [2025-03-17 07:11:11,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:11,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-03-17 07:11:12,042 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,043 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,058 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:12,074 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_negated.i[227849,227862] [2025-03-17 07:11:12,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:12,265 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:11:12,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12 WrapperNode [2025-03-17 07:11:12,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:12,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:12,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:11:12,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:11:12,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,407 INFO L138 Inliner]: procedures = 763, calls = 2441, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 623 [2025-03-17 07:11:12,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:12,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:11:12,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:11:12,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:11:12,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,490 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 6, 247, 3, 2, 23, 51, 5]. 73 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 6, 0, 0, 0, 9, 5]. The 249 writes are split as follows [0, 2, 233, 1, 1, 1, 11, 0]. [2025-03-17 07:11:12,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:11:12,548 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:11:12,548 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:11:12,548 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:11:12,549 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (1/1) ... [2025-03-17 07:11:12,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:12,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:12,574 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) [2025-03-17 07:11:12,579 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 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 07:11:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:11:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:11:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2025-03-17 07:11:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-17 07:11:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:11:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-17 07:11:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:11:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:11:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:11:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:11:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:11:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-17 07:11:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:11:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:11:12,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 07:11:12,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:11:12,599 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:11:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-17 07:11:12,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-17 07:11:12,915 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:11:12,916 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:11:12,952 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:11:12,977 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:11:12,979 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:11:13,067 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9791-2: 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; [2025-03-17 07:11:13,067 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9791-1: assume false; [2025-03-17 07:11:13,067 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9791-1: assume !false; [2025-03-17 07:11:13,168 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10069: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-17 07:11:13,217 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9956: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-17 07:11:13,235 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-17 07:11:13,247 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-17 07:11:18,229 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 07:11:18,338 INFO L? ?]: Removed 183 outVars from TransFormulas that were not future-live. [2025-03-17 07:11:18,338 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:11:18,354 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:11:18,354 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:11:18,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:18 BoogieIcfgContainer [2025-03-17 07:11:18,355 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:11:18,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:11:18,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:11:18,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:11:18,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:11:10" (1/3) ... [2025-03-17 07:11:18,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf11b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:18, skipping insertion in model container [2025-03-17 07:11:18,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:12" (2/3) ... [2025-03-17 07:11:18,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf11b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:18, skipping insertion in model container [2025-03-17 07:11:18,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:18" (3/3) ... [2025-03-17 07:11:18,362 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness_negated.i [2025-03-17 07:11:18,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:11:18,373 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_begin_harness_negated.i that has 25 procedures, 195 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-03-17 07:11:18,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:11:18,423 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;@36f18f0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:11:18,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:11:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 110 states have (on average 1.2727272727272727) internal successors, (140), 109 states have internal predecessors, (140), 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) [2025-03-17 07:11:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-17 07:11:18,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:18,435 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] [2025-03-17 07:11:18,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:18,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:18,438 INFO L85 PathProgramCache]: Analyzing trace with hash 56194062, now seen corresponding path program 1 times [2025-03-17 07:11:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:18,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555019996] [2025-03-17 07:11:18,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:22,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-17 07:11:23,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-17 07:11:23,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:23,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-17 07:11:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:24,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555019996] [2025-03-17 07:11:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555019996] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:24,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085981653] [2025-03-17 07:11:24,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:24,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:24,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:24,468 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) [2025-03-17 07:11:24,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:11:28,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-17 07:11:29,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-17 07:11:29,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:29,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:29,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 4541 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:11:29,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:11:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-17 07:11:29,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:11:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085981653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:11:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:11:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2025-03-17 07:11:29,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947678473] [2025-03-17 07:11:29,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:29,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:11:29,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:29,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:11:29,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:11:29,486 INFO L87 Difference]: Start difference. First operand has 167 states, 110 states have (on average 1.2727272727272727) internal successors, (140), 109 states have internal predecessors, (140), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2025-03-17 07:11:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:29,522 INFO L93 Difference]: Finished difference Result 326 states and 461 transitions. [2025-03-17 07:11:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:11:29,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 146 [2025-03-17 07:11:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:29,529 INFO L225 Difference]: With dead ends: 326 [2025-03-17 07:11:29,529 INFO L226 Difference]: Without dead ends: 163 [2025-03-17 07:11:29,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:11:29,533 INFO L435 NwaCegarLoop]: 212 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, 212 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 [2025-03-17 07:11:29,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:11:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-17 07:11:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2025-03-17 07:11:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 105 states have (on average 1.2476190476190476) internal successors, (131), 106 states have internal predecessors, (131), 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) [2025-03-17 07:11:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2025-03-17 07:11:29,572 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 146 [2025-03-17 07:11:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:29,573 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2025-03-17 07:11:29,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2025-03-17 07:11:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2025-03-17 07:11:29,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-03-17 07:11:29,577 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:29,577 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] [2025-03-17 07:11:29,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 07:11:29,778 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 [2025-03-17 07:11:29,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:29,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1569498300, now seen corresponding path program 1 times [2025-03-17 07:11:29,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:29,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973868674] [2025-03-17 07:11:29,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:29,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:33,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-03-17 07:11:34,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-03-17 07:11:34,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:34,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-17 07:11:34,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:34,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973868674] [2025-03-17 07:11:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973868674] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:34,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048130362] [2025-03-17 07:11:34,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:34,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:34,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:34,871 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) [2025-03-17 07:11:34,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 07:11:39,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-03-17 07:11:39,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-03-17 07:11:39,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:39,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:39,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 07:11:39,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:11:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-17 07:11:43,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 07:11:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 07:11:46,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048130362] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:46,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 07:11:46,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2025-03-17 07:11:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564248775] [2025-03-17 07:11:46,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:46,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 07:11:46,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:46,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 07:11:46,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-03-17 07:11:46,905 INFO L87 Difference]: Start difference. First operand 163 states and 210 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2025-03-17 07:11:50,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:50,053 INFO L93 Difference]: Finished difference Result 240 states and 314 transitions. [2025-03-17 07:11:50,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 07:11:50,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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 152 [2025-03-17 07:11:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:50,057 INFO L225 Difference]: With dead ends: 240 [2025-03-17 07:11:50,057 INFO L226 Difference]: Without dead ends: 171 [2025-03-17 07:11:50,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-17 07:11:50,058 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 211 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-17 07:11:50,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1022 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-17 07:11:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-03-17 07:11:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 165. [2025-03-17 07:11:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 108 states have internal predecessors, (132), 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) [2025-03-17 07:11:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 212 transitions. [2025-03-17 07:11:50,073 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 212 transitions. Word has length 152 [2025-03-17 07:11:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:50,073 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 212 transitions. [2025-03-17 07:11:50,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2025-03-17 07:11:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 212 transitions. [2025-03-17 07:11:50,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 07:11:50,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:50,076 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] [2025-03-17 07:11:50,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 07:11:50,276 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 [2025-03-17 07:11:50,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:50,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash 883726406, now seen corresponding path program 1 times [2025-03-17 07:11:50,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:50,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373640067] [2025-03-17 07:11:50,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:50,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:54,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 07:11:54,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 07:11:54,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:54,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-17 07:11:55,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:55,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373640067] [2025-03-17 07:11:55,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373640067] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:55,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272260784] [2025-03-17 07:11:55,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:55,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:55,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:55,018 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) [2025-03-17 07:11:55,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 07:11:59,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 07:11:59,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 07:11:59,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:59,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:59,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 07:11:59,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:12:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-17 07:12:00,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:12:00,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272260784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:00,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:12:00,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-17 07:12:00,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909020647] [2025-03-17 07:12:00,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:12:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:00,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:12:00,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:00,017 INFO L87 Difference]: Start difference. First operand 165 states and 212 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-03-17 07:12:00,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:00,219 INFO L93 Difference]: Finished difference Result 324 states and 417 transitions. [2025-03-17 07:12:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:12:00,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 153 [2025-03-17 07:12:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:00,221 INFO L225 Difference]: With dead ends: 324 [2025-03-17 07:12:00,221 INFO L226 Difference]: Without dead ends: 170 [2025-03-17 07:12:00,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:00,222 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 820 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 [2025-03-17 07:12:00,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 820 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 07:12:00,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-03-17 07:12:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-03-17 07:12:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 112 states have internal predecessors, (136), 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) [2025-03-17 07:12:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2025-03-17 07:12:00,237 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 153 [2025-03-17 07:12:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:00,238 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2025-03-17 07:12:00,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-03-17 07:12:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2025-03-17 07:12:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 07:12:00,240 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:00,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:00,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 07:12:00,440 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 [2025-03-17 07:12:00,441 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:00,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1282504902, now seen corresponding path program 1 times [2025-03-17 07:12:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:00,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830215578] [2025-03-17 07:12:00,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:04,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 07:12:04,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 07:12:04,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:04,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:08,109 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-17 07:12:08,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:08,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830215578] [2025-03-17 07:12:08,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830215578] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:12:08,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806451499] [2025-03-17 07:12:08,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:08,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:12:08,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:08,113 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) [2025-03-17 07:12:08,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 07:12:12,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 07:12:13,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 07:12:13,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:13,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:13,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-03-17 07:12:13,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:12:14,345 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 [2025-03-17 07:12:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 07:12:20,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:12:20,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806451499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:20,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:12:20,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2025-03-17 07:12:20,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550874593] [2025-03-17 07:12:20,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:20,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 07:12:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:20,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 07:12:20,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2025-03-17 07:12:20,242 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2025-03-17 07:12:24,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 07:12:28,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:33,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:37,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 07:12:41,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 07:12:46,262 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 []