./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.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_s_remove_node_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 78600a0192aa5022cfa892dc75b9c3e66d227a70dec366d4a7d6798475c28388 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:22:35,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:22:35,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:22:35,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:22:35,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:22:35,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:22:35,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:22:35,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:22:35,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:22:35,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:22:35,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:22:35,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:22:35,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:22:35,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:22:35,953 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:22:35,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:22:35,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:22:35,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:22:35,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:22:35,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:22:35,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:22:35,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:22:35,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:22:35,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:22:35,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:22:35,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:22:35,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:22:35,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:22:35,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:22:35,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:35,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:22:35,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:22:35,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:22:35,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:22:35,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:22:35,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:22:35,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:22:35,964 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:22:35,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:22:35,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78600a0192aa5022cfa892dc75b9c3e66d227a70dec366d4a7d6798475c28388 [2024-11-19 02:22:36,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:22:36,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:22:36,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:22:36,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:22:36,280 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:22:36,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2024-11-19 02:22:37,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:22:38,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:22:38,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2024-11-19 02:22:38,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285bc1314/8bc937b713414b87bae053d82daec690/FLAG5d762955b [2024-11-19 02:22:38,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285bc1314/8bc937b713414b87bae053d82daec690 [2024-11-19 02:22:38,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:22:38,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:22:38,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:38,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:22:38,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:22:38,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:38" (1/1) ... [2024-11-19 02:22:38,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690e545a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:38, skipping insertion in model container [2024-11-19 02:22:38,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:38" (1/1) ... [2024-11-19 02:22:38,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:22:38,943 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_s_remove_node_harness.i[4506,4519] [2024-11-19 02:22:38,953 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_s_remove_node_harness.i[4566,4579] [2024-11-19 02:22:39,647 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,648 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,649 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,650 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,651 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,671 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,673 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,679 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,680 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,682 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,689 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:39,689 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,091 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,098 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,207 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,208 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,208 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,209 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,209 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,209 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,210 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,211 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,211 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,212 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,212 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,212 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,214 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,218 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,219 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,219 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,220 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,238 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,238 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,261 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,273 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,274 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,274 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,275 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,277 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:40,329 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:22:40,347 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_s_remove_node_harness.i[4506,4519] [2024-11-19 02:22:40,352 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_s_remove_node_harness.i[4566,4579] [2024-11-19 02:22:40,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,413 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,418 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,420 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,421 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,421 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,422 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,422 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,422 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,423 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,546 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7818-7829] [2024-11-19 02:22:40,573 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,573 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,574 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,574 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,575 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,575 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,576 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,576 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,576 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,579 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,579 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,581 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,581 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,588 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,592 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,605 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:22:40,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:22:40,846 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:22:40,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40 WrapperNode [2024-11-19 02:22:40,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:22:40,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:40,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:22:40,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:22:40,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:40,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,021 INFO L138 Inliner]: procedures = 688, calls = 1968, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 746 [2024-11-19 02:22:41,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:22:41,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:22:41,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:22:41,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:22:41,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,131 INFO L175 MemorySlicer]: Split 356 memory accesses to 5 slices as follows [2, 262, 13, 76, 3]. 74 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 11, 11, 0, 1]. The 262 writes are split as follows [0, 242, 0, 19, 1]. [2024-11-19 02:22:41,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:22:41,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:22:41,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:22:41,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:22:41,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (1/1) ... [2024-11-19 02:22:41,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:22:41,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:41,294 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 02:22:41,296 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 02:22:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-19 02:22:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-19 02:22:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:22:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:22:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:22:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:22:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:22:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:22:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:22:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:22:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:22:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:22:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:22:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:22:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:22:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:22:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:22:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:22:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:22:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:22:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:22:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:22:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:22:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:22:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:22:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:22:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:22:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:22:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:22:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-19 02:22:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-19 02:22:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:22:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:22:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:22:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:22:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:22:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:22:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:22:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:22:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:22:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:22:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:22:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:22:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:22:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:22:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:22:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:22:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:22:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:22:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:22:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:22:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_using_uint64_impl [2024-11-19 02:22:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_using_uint64_impl [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:22:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:22:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:22:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:22:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:22:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:22:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:22:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2024-11-19 02:22:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2024-11-19 02:22:41,710 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:22:41,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:22:48,389 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-19 02:22:48,390 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:22:48,411 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:22:48,413 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 02:22:48,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:48 BoogieIcfgContainer [2024-11-19 02:22:48,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:22:48,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:22:48,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:22:48,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:22:48,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:22:38" (1/3) ... [2024-11-19 02:22:48,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a70bf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:48, skipping insertion in model container [2024-11-19 02:22:48,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:40" (2/3) ... [2024-11-19 02:22:48,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a70bf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:22:48, skipping insertion in model container [2024-11-19 02:22:48,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:22:48" (3/3) ... [2024-11-19 02:22:48,421 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_remove_node_harness.i [2024-11-19 02:22:48,440 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:22:48,440 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:22:48,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:22:48,533 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;@a332fc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:22:48,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:22:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 162 states have (on average 1.271604938271605) internal successors, (206), 163 states have internal predecessors, (206), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-19 02:22:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 02:22:48,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:48,563 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 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] [2024-11-19 02:22:48,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:48,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:48,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1715384061, now seen corresponding path program 1 times [2024-11-19 02:22:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:48,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791552615] [2024-11-19 02:22:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-19 02:22:54,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:54,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791552615] [2024-11-19 02:22:54,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791552615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392768027] [2024-11-19 02:22:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:54,821 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 02:22:54,822 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 02:23:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:00,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:23:00,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-19 02:23:00,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:00,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392768027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:00,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:00,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:23:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45342580] [2024-11-19 02:23:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:00,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:23:00,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:23:01,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:23:01,007 INFO L87 Difference]: Start difference. First operand has 248 states, 162 states have (on average 1.271604938271605) internal successors, (206), 163 states have internal predecessors, (206), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:23:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:01,082 INFO L93 Difference]: Finished difference Result 473 states and 682 transitions. [2024-11-19 02:23:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:23:01,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2024-11-19 02:23:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:01,098 INFO L225 Difference]: With dead ends: 473 [2024-11-19 02:23:01,099 INFO L226 Difference]: Without dead ends: 243 [2024-11-19 02:23:01,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 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 02:23:01,107 INFO L432 NwaCegarLoop]: 332 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, 332 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 02:23:01,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:23:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-19 02:23:01,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-11-19 02:23:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 158 states have (on average 1.2531645569620253) internal successors, (198), 159 states have internal predecessors, (198), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-19 02:23:01,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 327 transitions. [2024-11-19 02:23:01,170 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 327 transitions. Word has length 147 [2024-11-19 02:23:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:01,172 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 327 transitions. [2024-11-19 02:23:01,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:23:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 327 transitions. [2024-11-19 02:23:01,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 02:23:01,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:01,177 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 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] [2024-11-19 02:23:01,200 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 02:23:01,379 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 02:23:01,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:01,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:01,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2013094911, now seen corresponding path program 1 times [2024-11-19 02:23:01,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:01,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341854929] [2024-11-19 02:23:01,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:01,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-19 02:23:06,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341854929] [2024-11-19 02:23:06,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341854929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785215253] [2024-11-19 02:23:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:06,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:06,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:06,858 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 02:23:06,860 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 02:23:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:12,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 02:23:12,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-19 02:23:12,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:23:12,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785215253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:23:12,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:23:12,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-11-19 02:23:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841566914] [2024-11-19 02:23:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:23:12,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:23:12,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:23:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:23:12,487 INFO L87 Difference]: Start difference. First operand 243 states and 327 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:23:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:12,578 INFO L93 Difference]: Finished difference Result 462 states and 624 transitions. [2024-11-19 02:23:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:23:12,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2024-11-19 02:23:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:12,582 INFO L225 Difference]: With dead ends: 462 [2024-11-19 02:23:12,582 INFO L226 Difference]: Without dead ends: 244 [2024-11-19 02:23:12,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:23:12,584 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 0 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:12,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 648 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:23:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-19 02:23:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2024-11-19 02:23:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 159 states have (on average 1.251572327044025) internal successors, (199), 160 states have internal predecessors, (199), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-19 02:23:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 328 transitions. [2024-11-19 02:23:12,606 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 328 transitions. Word has length 147 [2024-11-19 02:23:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:12,607 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 328 transitions. [2024-11-19 02:23:12,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:23:12,607 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 328 transitions. [2024-11-19 02:23:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 02:23:12,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:12,610 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 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] [2024-11-19 02:23:12,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:23:12,810 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 02:23:12,811 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:12,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:12,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1196603455, now seen corresponding path program 1 times [2024-11-19 02:23:12,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:12,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342420539] [2024-11-19 02:23:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:12,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 02:23:19,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342420539] [2024-11-19 02:23:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342420539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:19,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89553091] [2024-11-19 02:23:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:19,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:19,361 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 02:23:19,362 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 02:23:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:24,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 4452 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 02:23:24,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-19 02:23:25,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 02:23:27,271 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-19 02:23:27,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89553091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 02:23:27,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 02:23:27,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-19 02:23:27,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866776221] [2024-11-19 02:23:27,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 02:23:27,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:23:27,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:23:27,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:23:27,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:23:27,276 INFO L87 Difference]: Start difference. First operand 244 states and 328 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:23:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:23:27,840 INFO L93 Difference]: Finished difference Result 424 states and 579 transitions. [2024-11-19 02:23:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:23:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 147 [2024-11-19 02:23:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:23:27,847 INFO L225 Difference]: With dead ends: 424 [2024-11-19 02:23:27,847 INFO L226 Difference]: Without dead ends: 266 [2024-11-19 02:23:27,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:23:27,849 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 10 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:23:27,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1926 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 02:23:27,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-19 02:23:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 262. [2024-11-19 02:23:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 172 states have (on average 1.25) internal successors, (215), 173 states have internal predecessors, (215), 69 states have call successors, (69), 19 states have call predecessors, (69), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-19 02:23:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 357 transitions. [2024-11-19 02:23:27,872 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 357 transitions. Word has length 147 [2024-11-19 02:23:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:23:27,873 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 357 transitions. [2024-11-19 02:23:27,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:23:27,873 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 357 transitions. [2024-11-19 02:23:27,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 02:23:27,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:23:27,876 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 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] [2024-11-19 02:23:27,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 02:23:28,076 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 02:23:28,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:23:28,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:23:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2077295487, now seen corresponding path program 1 times [2024-11-19 02:23:28,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:23:28,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547279402] [2024-11-19 02:23:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:23:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-19 02:23:36,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:23:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547279402] [2024-11-19 02:23:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547279402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:23:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026928245] [2024-11-19 02:23:36,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:23:36,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:23:36,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:23:36,760 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 02:23:36,761 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 02:23:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:23:42,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 4449 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-19 02:23:42,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:23:42,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 02:23:42,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2024-11-19 02:23:42,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 02:23:43,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 02:23:43,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-19 02:23:43,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 02:23:43,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 02:23:50,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 02:23:50,588 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 02:23:50,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2024-11-19 02:23:50,654 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 02:23:50,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2024-11-19 02:23:53,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 02:23:53,820 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 02:23:53,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 7 [2024-11-19 02:23:53,851 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 02:23:53,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 7 [2024-11-19 02:23:54,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13