./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.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_delete_harness.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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:11:11,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:11:11,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:11:11,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:11:11,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:11:11,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:11:11,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:11:11,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:11:11,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:11:11,093 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:11:11,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:11:11,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:11:11,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:11:11,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:11:11,094 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:11:11,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:11:11,095 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:11:11,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:11:11,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:11:11,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:11,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:11:11,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:11:11,096 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:11:11,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:11:11,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:11:11,097 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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2025-03-17 07:11:11,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:11:11,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:11:11,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:11:11,343 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:11:11,343 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:11:11,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-03-17 07:11:12,521 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb04df2c/319cd1639df14336b8b7977e81c829a7/FLAGe220f5497 [2025-03-17 07:11:13,036 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:11:13,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-03-17 07:11:13,075 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb04df2c/319cd1639df14336b8b7977e81c829a7/FLAGe220f5497 [2025-03-17 07:11:13,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb04df2c/319cd1639df14336b8b7977e81c829a7 [2025-03-17 07:11:13,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:11:13,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:11:13,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:13,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:11:13,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:11:13,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:13" (1/1) ... [2025-03-17 07:11:13,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3c5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:13, skipping insertion in model container [2025-03-17 07:11:13,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:13" (1/1) ... [2025-03-17 07:11:13,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:11:13,421 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_delete_harness.i[4494,4507] [2025-03-17 07:11:13,429 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_delete_harness.i[4554,4567] [2025-03-17 07:11:13,983 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,994 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,996 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,997 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,997 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:13,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,727 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,783 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_delete_harness.i[227989,228002] [2025-03-17 07:11:14,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:14,810 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:11:14,822 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_delete_harness.i[4494,4507] [2025-03-17 07:11:14,823 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_delete_harness.i[4554,4567] [2025-03-17 07:11:14,861 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,862 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,862 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,863 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,863 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:14,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-17 07:11:15,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,033 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:15,066 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_delete_harness.i[227989,228002] [2025-03-17 07:11:15,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:15,222 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:11:15,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15 WrapperNode [2025-03-17 07:11:15,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:15,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:15,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:11:15,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:11:15,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,355 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 747 [2025-03-17 07:11:15,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:15,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:11:15,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:11:15,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:11:15,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,438 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 45, 238, 40, 13, 2, 1, 2, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 6, 9, 0, 0, 0, 0, 5]. The 246 writes are split as follows [0, 6, 232, 4, 1, 1, 1, 1, 0]. [2025-03-17 07:11:15,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,472 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:11:15,517 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:11:15,518 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:11:15,518 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:11:15,520 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (1/1) ... [2025-03-17 07:11:15,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:15,551 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 07:11:15,553 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 07:11:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 07:11:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 07:11:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 07:11:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 07:11:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 07:11:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 07:11:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 07:11:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:11:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:11:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:11:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:11:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:11:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 07:11:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:11:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:11:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:11:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:11:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:11:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:11:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-17 07:11:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:11:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 07:11:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:11:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2025-03-17 07:11:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-17 07:11:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2025-03-17 07:11:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-17 07:11:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-17 07:11:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-17 07:11:15,927 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:11:15,930 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:11:15,981 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:11:16,003 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:11:16,005 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:11:16,135 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume false; [2025-03-17 07:11:16,136 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume !false; [2025-03-17 07:11:16,136 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume false; [2025-03-17 07:11:16,136 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume !false; [2025-03-17 07:11:16,335 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-17 07:11:16,391 INFO L1322 $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; [2025-03-17 07:11:16,396 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:11:16,418 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-17 07:11:16,438 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-17 07:11:21,528 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6833: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-03-17 07:11:21,529 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-03-17 07:11:21,641 INFO L? ?]: Removed 210 outVars from TransFormulas that were not future-live. [2025-03-17 07:11:21,641 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:11:21,665 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:11:21,665 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:11:21,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:21 BoogieIcfgContainer [2025-03-17 07:11:21,665 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:11:21,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:11:21,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:11:21,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:11:21,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:11:13" (1/3) ... [2025-03-17 07:11:21,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377d5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:21, skipping insertion in model container [2025-03-17 07:11:21,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:15" (2/3) ... [2025-03-17 07:11:21,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377d5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:21, skipping insertion in model container [2025-03-17 07:11:21,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:21" (3/3) ... [2025-03-17 07:11:21,673 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2025-03-17 07:11:21,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:11:21,685 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 248 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2025-03-17 07:11:21,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:11:21,744 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;@3058c0a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:11:21,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:11:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 143 states have (on average 1.2937062937062938) internal successors, (185), 142 states have internal predecessors, (185), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-17 07:11:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-03-17 07:11:21,765 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:21,766 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:11:21,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:21,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:21,773 INFO L85 PathProgramCache]: Analyzing trace with hash 154914654, now seen corresponding path program 1 times [2025-03-17 07:11:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915067121] [2025-03-17 07:11:21,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:26,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-03-17 07:11:26,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-03-17 07:11:26,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:26,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-03-17 07:11:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:26,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915067121] [2025-03-17 07:11:26,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915067121] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450494140] [2025-03-17 07:11:26,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:26,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:26,887 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 07:11:26,889 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 07:11:31,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-03-17 07:11:31,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-03-17 07:11:31,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:31,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:31,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 4561 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:11:31,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:11:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2025-03-17 07:11:31,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:11:31,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450494140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:11:31,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:11:31,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:11:31,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196960644] [2025-03-17 07:11:31,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:31,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:11:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:31,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:11:31,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:11:31,773 INFO L87 Difference]: Start difference. First operand has 216 states, 143 states have (on average 1.2937062937062938) internal successors, (185), 142 states have internal predecessors, (185), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-17 07:11:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:31,850 INFO L93 Difference]: Finished difference Result 428 states and 621 transitions. [2025-03-17 07:11:31,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:11:31,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 201 [2025-03-17 07:11:31,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:31,861 INFO L225 Difference]: With dead ends: 428 [2025-03-17 07:11:31,861 INFO L226 Difference]: Without dead ends: 213 [2025-03-17 07:11:31,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:11:31,871 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:11:31,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:11:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2025-03-17 07:11:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2025-03-17 07:11:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 139 states have (on average 1.2589928057553956) internal successors, (175), 140 states have internal predecessors, (175), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-17 07:11:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 282 transitions. [2025-03-17 07:11:31,933 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 282 transitions. Word has length 201 [2025-03-17 07:11:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:31,934 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 282 transitions. [2025-03-17 07:11:31,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-17 07:11:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 282 transitions. [2025-03-17 07:11:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-03-17 07:11:31,937 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:31,937 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:11:31,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 07:11:32,138 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 07:11:32,139 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:32,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:32,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1872061695, now seen corresponding path program 1 times [2025-03-17 07:11:32,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:32,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487812672] [2025-03-17 07:11:32,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:32,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:36,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-03-17 07:11:36,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-03-17 07:11:36,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:36,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-17 07:11:37,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:37,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487812672] [2025-03-17 07:11:37,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487812672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:11:37,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:11:37,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:11:37,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468230091] [2025-03-17 07:11:37,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:37,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:11:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:37,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:11:37,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:11:37,555 INFO L87 Difference]: Start difference. First operand 213 states and 282 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-17 07:11:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:37,932 INFO L93 Difference]: Finished difference Result 391 states and 521 transitions. [2025-03-17 07:11:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:11:37,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 201 [2025-03-17 07:11:37,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:37,939 INFO L225 Difference]: With dead ends: 391 [2025-03-17 07:11:37,939 INFO L226 Difference]: Without dead ends: 218 [2025-03-17 07:11:37,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:11:37,941 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 0 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 07:11:37,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1100 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 07:11:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-03-17 07:11:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2025-03-17 07:11:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 144 states have internal predecessors, (179), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2025-03-17 07:11:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2025-03-17 07:11:37,959 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 201 [2025-03-17 07:11:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:37,959 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2025-03-17 07:11:37,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-17 07:11:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2025-03-17 07:11:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-03-17 07:11:37,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:37,963 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:37,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 07:11:37,964 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 758770109, now seen corresponding path program 1 times [2025-03-17 07:11:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632272480] [2025-03-17 07:11:37,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:42,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-03-17 07:11:42,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-03-17 07:11:42,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:42,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-17 07:11:45,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:45,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632272480] [2025-03-17 07:11:45,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632272480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:11:45,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:11:45,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 07:11:45,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091468777] [2025-03-17 07:11:45,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:45,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 07:11:45,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:45,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 07:11:45,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 07:11:45,916 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-03-17 07:11:49,978 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 [] [2025-03-17 07:11:54,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:11:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:58,296 INFO L93 Difference]: Finished difference Result 386 states and 515 transitions. [2025-03-17 07:11:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 07:11:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 206 [2025-03-17 07:11:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:58,300 INFO L225 Difference]: With dead ends: 386 [2025-03-17 07:11:58,301 INFO L226 Difference]: Without dead ends: 226 [2025-03-17 07:11:58,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-17 07:11:58,303 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 22 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2025-03-17 07:11:58,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2009 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2025-03-17 07:11:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-17 07:11:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 223. [2025-03-17 07:11:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 147 states have (on average 1.251700680272109) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2025-03-17 07:11:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 293 transitions. [2025-03-17 07:11:58,325 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 293 transitions. Word has length 206 [2025-03-17 07:11:58,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:58,326 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 293 transitions. [2025-03-17 07:11:58,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-03-17 07:11:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 293 transitions. [2025-03-17 07:11:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-03-17 07:11:58,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:58,329 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:58,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 07:11:58,329 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:58,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1658928292, now seen corresponding path program 1 times [2025-03-17 07:11:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407149286] [2025-03-17 07:11:58,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:02,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-03-17 07:12:02,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-03-17 07:12:02,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:02,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:03,461 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-17 07:12:03,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:03,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407149286] [2025-03-17 07:12:03,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407149286] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:03,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:12:03,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:12:03,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704718009] [2025-03-17 07:12:03,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:03,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:12:03,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:03,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:12:03,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:03,463 INFO L87 Difference]: Start difference. First operand 223 states and 293 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-03-17 07:12:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:03,932 INFO L93 Difference]: Finished difference Result 393 states and 523 transitions. [2025-03-17 07:12:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:12:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 206 [2025-03-17 07:12:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:03,935 INFO L225 Difference]: With dead ends: 393 [2025-03-17 07:12:03,935 INFO L226 Difference]: Without dead ends: 228 [2025-03-17 07:12:03,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:03,936 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 21 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:03,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 786 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 07:12:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-17 07:12:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2025-03-17 07:12:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 148 states have (on average 1.25) internal successors, (185), 150 states have internal predecessors, (185), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2025-03-17 07:12:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 296 transitions. [2025-03-17 07:12:03,947 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 296 transitions. Word has length 206 [2025-03-17 07:12:03,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:03,947 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 296 transitions. [2025-03-17 07:12:03,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-03-17 07:12:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 296 transitions. [2025-03-17 07:12:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2025-03-17 07:12:03,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:03,949 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:03,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 07:12:03,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:03,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1439856860, now seen corresponding path program 1 times [2025-03-17 07:12:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926477301] [2025-03-17 07:12:03,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:03,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:07,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-17 07:12:07,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-17 07:12:07,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:07,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2025-03-17 07:12:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926477301] [2025-03-17 07:12:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926477301] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:12:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330571908] [2025-03-17 07:12:10,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:10,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:12:10,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:10,498 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 07:12:10,499 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 07:12:14,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-17 07:12:15,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-17 07:12:15,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:15,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:15,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 4585 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-17 07:12:15,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:12:17,009 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 07:12:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-03-17 07:12:20,347 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:12:20,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330571908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:20,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:12:20,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2025-03-17 07:12:20,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744667962] [2025-03-17 07:12:20,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:20,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 07:12:20,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:20,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 07:12:20,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-03-17 07:12:20,349 INFO L87 Difference]: Start difference. First operand 225 states and 296 transitions. Second operand has 12 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2025-03-17 07:12:24,411 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 [] [2025-03-17 07:12:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:35,940 INFO L93 Difference]: Finished difference Result 421 states and 556 transitions. [2025-03-17 07:12:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 07:12:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 212 [2025-03-17 07:12:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:35,946 INFO L225 Difference]: With dead ends: 421 [2025-03-17 07:12:35,946 INFO L226 Difference]: Without dead ends: 254 [2025-03-17 07:12:35,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2025-03-17 07:12:35,949 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 222 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:35,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1657 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 695 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2025-03-17 07:12:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2025-03-17 07:12:35,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 243. [2025-03-17 07:12:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 162 states have (on average 1.2407407407407407) internal successors, (201), 165 states have internal predecessors, (201), 55 states have call successors, (55), 22 states have call predecessors, (55), 25 states have return successors, (62), 55 states have call predecessors, (62), 54 states have call successors, (62) [2025-03-17 07:12:35,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 318 transitions. [2025-03-17 07:12:35,969 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 318 transitions. Word has length 212 [2025-03-17 07:12:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:35,969 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 318 transitions. [2025-03-17 07:12:35,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2025-03-17 07:12:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 318 transitions. [2025-03-17 07:12:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2025-03-17 07:12:35,971 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:35,971 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:35,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 07:12:36,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:12:36,172 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:36,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash -624689471, now seen corresponding path program 1 times [2025-03-17 07:12:36,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:36,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669177811] [2025-03-17 07:12:36,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:36,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:40,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 219 statements into 1 equivalence classes. [2025-03-17 07:12:40,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 219 of 219 statements. [2025-03-17 07:12:40,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:40,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat