./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_priority_queue_remove_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 fafc38909a055846da1b41b1ae706143d92ef6bb742651c374b2236f4f92c5ee --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:22:32,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:22:32,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:22:32,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:22:32,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:22:32,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:22:32,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:22:32,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:22:32,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:22:32,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:22:32,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:22:32,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:22:32,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:22:32,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:22:32,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:22:32,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:22:32,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:22:32,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:22:32,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:22:32,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:22:32,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:22:32,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:22:32,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:22:32,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:22:32,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:22:32,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:22:32,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:22:32,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:22:32,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:22:32,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:32,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:22:32,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:22:32,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:22:32,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fafc38909a055846da1b41b1ae706143d92ef6bb742651c374b2236f4f92c5ee [2024-11-19 02:22:32,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:22:32,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:22:32,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:22:32,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:22:32,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:22:32,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2024-11-19 02:22:33,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:22:34,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:22:34,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness_negated.i [2024-11-19 02:22:34,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b696f42/ae1c07d829574fcc999b9bff198b99a5/FLAGb81beca6a [2024-11-19 02:22:34,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b696f42/ae1c07d829574fcc999b9bff198b99a5 [2024-11-19 02:22:34,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:22:34,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:22:34,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:34,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:22:34,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:22:34,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:34" (1/1) ... [2024-11-19 02:22:34,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1087f8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:34, skipping insertion in model container [2024-11-19 02:22:34,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:34" (1/1) ... [2024-11-19 02:22:34,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:22:34,851 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_priority_queue_remove_harness_negated.i[4499,4512] [2024-11-19 02:22:34,860 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_priority_queue_remove_harness_negated.i[4559,4572] [2024-11-19 02:22:35,567 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,568 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,569 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,569 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,570 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,580 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,581 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,582 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,583 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,585 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:35,587 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,033 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,118 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,119 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,119 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,119 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,119 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,120 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,120 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,121 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,121 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,121 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,122 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,122 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,122 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,127 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,128 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,128 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,128 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,171 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,172 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,172 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,185 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,188 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,188 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:36,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:22:36,274 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_priority_queue_remove_harness_negated.i[4499,4512] [2024-11-19 02:22:36,274 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_priority_queue_remove_harness_negated.i[4559,4572] [2024-11-19 02:22:36,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,323 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,324 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,324 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,325 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,326 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,326 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,326 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,327 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,399 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,407 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2024-11-19 02:22:36,434 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,435 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,435 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,436 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,436 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,436 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,438 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,438 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,438 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,439 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,439 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,440 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,441 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,450 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,451 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,452 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,458 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,458 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,458 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:36,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:36,660 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:22:36,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36 WrapperNode [2024-11-19 02:22:36,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:36,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:36,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:22:36,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:22:36,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,854 INFO L138 Inliner]: procedures = 686, calls = 1933, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1090 [2024-11-19 02:22:36,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:36,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:22:36,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:22:36,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:22:36,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,956 INFO L175 MemorySlicer]: Split 396 memory accesses to 6 slices as follows [2, 13, 3, 97, 264, 17]. 67 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [2, 11, 1, 0, 12, 4]. The 262 writes are split as follows [0, 0, 1, 18, 240, 3]. [2024-11-19 02:22:36,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:36,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:37,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:37,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:37,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:22:37,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:22:37,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:22:37,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:22:37,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (1/1) ... [2024-11-19 02:22:37,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:37,056 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) [2024-11-19 02:22:37,058 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 [2024-11-19 02:22:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-19 02:22:37,095 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-19 02:22:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-19 02:22:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-19 02:22:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:22:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:22:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:22:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:22:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:22:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:22:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-19 02:22:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:22:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:22:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:22:37,098 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:22:37,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2024-11-19 02:22:37,099 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:22:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:22:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:22:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:22:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-19 02:22:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-19 02:22:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:22:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:22:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:22:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:22:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:22:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:22:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:22:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:22:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:22:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:22:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:22:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:22:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:22:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:22:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:22:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:22:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:22:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-19 02:22:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-19 02:22:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-19 02:22:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:22:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:22:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-19 02:22:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:22:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-19 02:22:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:22:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:22:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:22:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:22:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-19 02:22:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-19 02:22:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 02:22:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:22:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2024-11-19 02:22:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2024-11-19 02:22:37,420 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:22:37,424 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:22:43,532 INFO L? ?]: Removed 267 outVars from TransFormulas that were not future-live. [2024-11-19 02:22:43,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:22:43,552 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:22:43,552 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-19 02:22:43,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:43 BoogieIcfgContainer [2024-11-19 02:22:43,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:22:43,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:22:43,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:22:43,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:22:43,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:22:34" (1/3) ... [2024-11-19 02:22:43,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775f37b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:43, skipping insertion in model container [2024-11-19 02:22:43,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:36" (2/3) ... [2024-11-19 02:22:43,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775f37b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:43, skipping insertion in model container [2024-11-19 02:22:43,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:43" (3/3) ... [2024-11-19 02:22:43,563 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness_negated.i [2024-11-19 02:22:43,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:22:43,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 02:22:43,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:22:43,678 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;@19901dd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:22:43,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 02:22:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 469 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 277 states have internal predecessors, (341), 166 states have call successors, (166), 28 states have call predecessors, (166), 28 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-19 02:22:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-19 02:22:43,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:43,702 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:22:43,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:43,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash 243777549, now seen corresponding path program 1 times [2024-11-19 02:22:43,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:43,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235497533] [2024-11-19 02:22:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-19 02:22:49,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:49,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235497533] [2024-11-19 02:22:49,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235497533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391476772] [2024-11-19 02:22:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:49,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:49,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:49,294 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) [2024-11-19 02:22:49,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:22:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:54,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 4523 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:22:54,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:22:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-19 02:22:54,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:22:54,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391476772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:22:54,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:22:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:22:54,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854784328] [2024-11-19 02:22:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:22:54,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:22:54,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:22:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:22:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:22:54,545 INFO L87 Difference]: Start difference. First operand has 469 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 277 states have internal predecessors, (341), 166 states have call successors, (166), 28 states have call predecessors, (166), 28 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-19 02:22:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:22:54,616 INFO L93 Difference]: Finished difference Result 910 states and 1440 transitions. [2024-11-19 02:22:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:22:54,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 171 [2024-11-19 02:22:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:22:54,631 INFO L225 Difference]: With dead ends: 910 [2024-11-19 02:22:54,631 INFO L226 Difference]: Without dead ends: 462 [2024-11-19 02:22:54,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:22:54,641 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:22:54,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:22:54,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-19 02:22:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-11-19 02:22:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 267 states have (on average 1.2172284644194757) internal successors, (325), 270 states have internal predecessors, (325), 166 states have call successors, (166), 28 states have call predecessors, (166), 27 states have return successors, (164), 164 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-19 02:22:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 655 transitions. [2024-11-19 02:22:54,721 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 655 transitions. Word has length 171 [2024-11-19 02:22:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:22:54,722 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 655 transitions. [2024-11-19 02:22:54,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-19 02:22:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 655 transitions. [2024-11-19 02:22:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-19 02:22:54,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:54,726 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 02:22:54,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:22:54,927 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 [2024-11-19 02:22:54,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:54,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash 426920926, now seen corresponding path program 1 times [2024-11-19 02:22:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229478941] [2024-11-19 02:22:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-19 02:23:00,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:00,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229478941] [2024-11-19 02:23:00,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229478941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:00,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601827651] [2024-11-19 02:23:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:00,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:00,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:00,527 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) [2024-11-19 02:23:00,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:23:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:05,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 4598 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:23:05,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-19 02:23:06,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:06,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601827651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:06,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:06,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:23:06,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964266048] [2024-11-19 02:23:06,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:06,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:23:06,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:06,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:23:06,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:23:06,609 INFO L87 Difference]: Start difference. First operand 462 states and 655 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-19 02:23:10,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:10,213 INFO L93 Difference]: Finished difference Result 875 states and 1259 transitions. [2024-11-19 02:23:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:23:10,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 186 [2024-11-19 02:23:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:10,219 INFO L225 Difference]: With dead ends: 875 [2024-11-19 02:23:10,220 INFO L226 Difference]: Without dead ends: 464 [2024-11-19 02:23:10,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:23:10,224 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 663 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:10,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 2261 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 02:23:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-19 02:23:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-11-19 02:23:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 268 states have (on average 1.2164179104477613) internal successors, (326), 272 states have internal predecessors, (326), 166 states have call successors, (166), 28 states have call predecessors, (166), 28 states have return successors, (177), 164 states have call predecessors, (177), 164 states have call successors, (177) [2024-11-19 02:23:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 669 transitions. [2024-11-19 02:23:10,275 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 669 transitions. Word has length 186 [2024-11-19 02:23:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:10,275 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 669 transitions. [2024-11-19 02:23:10,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-19 02:23:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 669 transitions. [2024-11-19 02:23:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-19 02:23:10,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:10,278 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:23:10,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 02:23:10,478 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 [2024-11-19 02:23:10,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:10,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1996843012, now seen corresponding path program 1 times [2024-11-19 02:23:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710712115] [2024-11-19 02:23:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:16,133 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-19 02:23:16,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:16,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710712115] [2024-11-19 02:23:16,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710712115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:16,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541957104] [2024-11-19 02:23:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:16,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:16,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:16,138 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) [2024-11-19 02:23:16,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:23:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:21,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 4648 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:23:21,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-19 02:23:22,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:22,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541957104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:22,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:22,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-19 02:23:22,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828373572] [2024-11-19 02:23:22,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:22,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:23:22,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:23:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:23:22,982 INFO L87 Difference]: Start difference. First operand 464 states and 669 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-19 02:23:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:30,327 INFO L93 Difference]: Finished difference Result 898 states and 1330 transitions. [2024-11-19 02:23:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:23:30,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 194 [2024-11-19 02:23:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:30,333 INFO L225 Difference]: With dead ends: 898 [2024-11-19 02:23:30,334 INFO L226 Difference]: Without dead ends: 485 [2024-11-19 02:23:30,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-19 02:23:30,337 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 696 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:30,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 3335 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-19 02:23:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-19 02:23:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 483. [2024-11-19 02:23:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 284 states have (on average 1.2253521126760563) internal successors, (348), 288 states have internal predecessors, (348), 168 states have call successors, (168), 28 states have call predecessors, (168), 29 states have return successors, (196), 167 states have call predecessors, (196), 166 states have call successors, (196) [2024-11-19 02:23:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 712 transitions. [2024-11-19 02:23:30,376 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 712 transitions. Word has length 194 [2024-11-19 02:23:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:30,378 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 712 transitions. [2024-11-19 02:23:30,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-19 02:23:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 712 transitions. [2024-11-19 02:23:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-19 02:23:30,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:30,382 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:23:30,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:23:30,582 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 [2024-11-19 02:23:30,583 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:30,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1833641163, now seen corresponding path program 1 times [2024-11-19 02:23:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:30,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619688425] [2024-11-19 02:23:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:30,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-19 02:23:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619688425] [2024-11-19 02:23:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619688425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957192814] [2024-11-19 02:23:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:36,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:36,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:36,271 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) [2024-11-19 02:23:36,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 02:23:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:41,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 4775 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:23:41,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-19 02:23:42,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:42,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957192814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:42,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:42,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-19 02:23:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406345655] [2024-11-19 02:23:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:42,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:23:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:23:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 02:23:42,874 INFO L87 Difference]: Start difference. First operand 483 states and 712 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-19 02:23:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:47,852 INFO L93 Difference]: Finished difference Result 921 states and 1389 transitions. [2024-11-19 02:23:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:23:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 209 [2024-11-19 02:23:47,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:47,858 INFO L225 Difference]: With dead ends: 921 [2024-11-19 02:23:47,859 INFO L226 Difference]: Without dead ends: 489 [2024-11-19 02:23:47,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:23:47,862 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 679 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:47,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 2772 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 02:23:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-19 02:23:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 483. [2024-11-19 02:23:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 284 states have (on average 1.2253521126760563) internal successors, (348), 288 states have internal predecessors, (348), 168 states have call successors, (168), 28 states have call predecessors, (168), 29 states have return successors, (196), 167 states have call predecessors, (196), 166 states have call successors, (196) [2024-11-19 02:23:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 712 transitions. [2024-11-19 02:23:47,892 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 712 transitions. Word has length 209 [2024-11-19 02:23:47,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:47,893 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 712 transitions. [2024-11-19 02:23:47,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-19 02:23:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 712 transitions. [2024-11-19 02:23:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-19 02:23:47,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:47,896 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:23:47,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 02:23:48,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:48,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:48,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1308470230, now seen corresponding path program 1 times [2024-11-19 02:23:48,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:48,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803748255] [2024-11-19 02:23:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-19 02:23:54,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:54,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803748255] [2024-11-19 02:23:54,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803748255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:54,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101550179] [2024-11-19 02:23:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:54,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:54,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:54,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:23:54,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 02:23:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:59,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 4842 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 02:23:59,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:24:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-19 02:24:01,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:24:01,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101550179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:24:01,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:24:01,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-19 02:24:01,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439289701] [2024-11-19 02:24:01,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:24:01,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:24:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:24:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:24:01,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:24:01,488 INFO L87 Difference]: Start difference. First operand 483 states and 712 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32)