./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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 0.3.0-?-798a7b3-m [2025-03-04 03:02:48,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:02:48,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:02:48,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:02:48,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:02:48,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:02:48,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:02:48,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:02:48,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:02:48,958 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:02:48,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:02:48,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:02:48,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:02:48,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:02:48,960 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:02:48,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:02:48,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:02:48,961 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78600a0192aa5022cfa892dc75b9c3e66d227a70dec366d4a7d6798475c28388 [2025-03-04 03:02:49,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:02:49,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:02:49,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:02:49,202 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:02:49,202 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:02:49,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-03-04 03:02:50,399 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87872dee4/97dd8c2826664a80a81b76cbbbdd0fe4/FLAG9f49f571f [2025-03-04 03:02:50,845 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:02:50,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-03-04 03:02:50,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87872dee4/97dd8c2826664a80a81b76cbbbdd0fe4/FLAG9f49f571f [2025-03-04 03:02:50,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87872dee4/97dd8c2826664a80a81b76cbbbdd0fe4 [2025-03-04 03:02:50,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:02:50,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:02:50,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:02:50,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:02:50,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:02:50,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:02:50" (1/1) ... [2025-03-04 03:02:50,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677c9f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:50, skipping insertion in model container [2025-03-04 03:02:50,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:02:50" (1/1) ... [2025-03-04 03:02:51,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:02:51,268 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] [2025-03-04 03:02:51,275 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] [2025-03-04 03:02:51,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,708 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,710 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,711 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,712 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:51,712 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,108 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,108 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,108 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,109 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,109 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,109 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,114 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,144 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,151 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,151 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:02:52,187 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:02:52,199 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] [2025-03-04 03:02:52,200 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] [2025-03-04 03:02:52,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,321 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7818-7829] [2025-03-04 03:02:52,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,398 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:02:52,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:02:52,574 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:02:52,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52 WrapperNode [2025-03-04 03:02:52,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:02:52,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:02:52,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:02:52,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:02:52,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,681 INFO L138 Inliner]: procedures = 688, calls = 1968, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 746 [2025-03-04 03:02:52,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:02:52,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:02:52,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:02:52,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:02:52,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,765 INFO L175 MemorySlicer]: Split 356 memory accesses to 5 slices as follows [2, 76, 13, 3, 262]. 74 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 11, 1, 11]. The 262 writes are split as follows [0, 19, 0, 1, 242]. [2025-03-04 03:02:52,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,801 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:02:52,829 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:02:52,829 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:02:52,829 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:02:52,830 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (1/1) ... [2025-03-04 03:02:52,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:02:52,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:02:52,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 03:02:52,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:02:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:02:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 03:02:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:02:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:02:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:02:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 03:02:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 03:02:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_using_uint64_impl [2025-03-04 03:02:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_using_uint64_impl [2025-03-04 03:02:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:02:52,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:02:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2025-03-04 03:02:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2025-03-04 03:02:53,106 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:02:53,109 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:02:53,141 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-03-04 03:02:53,143 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 03:02:53,160 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 03:02:53,309 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-03-04 03:02:53,367 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8319: havoc aws_priority_queue_backpointers_valid_#t~ret886#1;havoc aws_priority_queue_backpointers_valid_#t~short887#1; [2025-03-04 03:02:53,436 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2944: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 03:02:53,440 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:02:53,459 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7421: havoc #t~ret691.base, #t~ret691.offset; [2025-03-04 03:02:53,485 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3188: havoc #t~ret236; [2025-03-04 03:02:59,150 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2025-03-04 03:02:59,151 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:02:59,164 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:02:59,164 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:02:59,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:02:59 BoogieIcfgContainer [2025-03-04 03:02:59,165 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:02:59,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:02:59,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:02:59,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:02:59,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:02:50" (1/3) ... [2025-03-04 03:02:59,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655540ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:02:59, skipping insertion in model container [2025-03-04 03:02:59,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:02:52" (2/3) ... [2025-03-04 03:02:59,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655540ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:02:59, skipping insertion in model container [2025-03-04 03:02:59,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:02:59" (3/3) ... [2025-03-04 03:02:59,173 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_remove_node_harness.i [2025-03-04 03:02:59,186 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:02:59,187 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_remove_node_harness.i that has 20 procedures, 244 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-04 03:02:59,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:02:59,239 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;@3ecb604d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:02:59,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:02:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 158 states have (on average 1.2658227848101267) internal successors, (200), 159 states have internal predecessors, (200), 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) [2025-03-04 03:02:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 03:02:59,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:02:59,258 INFO L218 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] [2025-03-04 03:02:59,258 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:02:59,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:02:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2036648883, now seen corresponding path program 1 times [2025-03-04 03:02:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:02:59,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789014957] [2025-03-04 03:02:59,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:02:59,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:03,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:04,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:04,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:04,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-04 03:03:04,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:04,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789014957] [2025-03-04 03:03:04,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789014957] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:04,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071293328] [2025-03-04 03:03:04,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:04,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:04,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:03:04,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 03:03:08,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:09,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:09,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:09,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:09,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 4452 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 03:03:09,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-03-04 03:03:09,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:03:09,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071293328] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:03:09,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:03:09,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 03:03:09,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827079060] [2025-03-04 03:03:09,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:03:09,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 03:03:09,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:09,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 03:03:09,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:03:09,148 INFO L87 Difference]: Start difference. First operand has 244 states, 158 states have (on average 1.2658227848101267) internal successors, (200), 159 states have internal predecessors, (200), 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) [2025-03-04 03:03:09,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:09,196 INFO L93 Difference]: Finished difference Result 465 states and 664 transitions. [2025-03-04 03:03:09,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 03:03:09,198 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 [2025-03-04 03:03:09,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:09,208 INFO L225 Difference]: With dead ends: 465 [2025-03-04 03:03:09,210 INFO L226 Difference]: Without dead ends: 239 [2025-03-04 03:03:09,218 INFO L434 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 [2025-03-04 03:03:09,220 INFO L435 NwaCegarLoop]: 328 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, 328 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 [2025-03-04 03:03:09,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 03:03:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-03-04 03:03:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2025-03-04 03:03:09,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 155 states have internal predecessors, (194), 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) [2025-03-04 03:03:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2025-03-04 03:03:09,279 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 147 [2025-03-04 03:03:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:09,280 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2025-03-04 03:03:09,281 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) [2025-03-04 03:03:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2025-03-04 03:03:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 03:03:09,285 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:09,286 INFO L218 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] [2025-03-04 03:03:09,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 03:03:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 03:03:09,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:09,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash 394078927, now seen corresponding path program 1 times [2025-03-04 03:03:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:09,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241918040] [2025-03-04 03:03:09,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:09,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:13,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:13,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:13,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:13,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 03:03:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241918040] [2025-03-04 03:03:15,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241918040] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759549841] [2025-03-04 03:03:15,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:15,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:15,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:15,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:03:15,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 03:03:19,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:20,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:20,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:20,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:20,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 4452 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 03:03:20,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-03-04 03:03:20,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 03:03:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 03:03:22,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759549841] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 03:03:22,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 03:03:22,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-04 03:03:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786733345] [2025-03-04 03:03:22,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 03:03:22,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 03:03:22,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:22,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 03:03:22,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 03:03:22,831 INFO L87 Difference]: Start difference. First operand 239 states and 323 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) [2025-03-04 03:03:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:23,336 INFO L93 Difference]: Finished difference Result 415 states and 570 transitions. [2025-03-04 03:03:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 03:03:23,336 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 [2025-03-04 03:03:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:23,340 INFO L225 Difference]: With dead ends: 415 [2025-03-04 03:03:23,340 INFO L226 Difference]: Without dead ends: 261 [2025-03-04 03:03:23,341 INFO L434 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 [2025-03-04 03:03:23,342 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 10 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1903 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 [2025-03-04 03:03:23,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1903 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 03:03:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2025-03-04 03:03:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 257. [2025-03-04 03:03:23,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 167 states have (on average 1.2574850299401197) internal successors, (210), 168 states have internal predecessors, (210), 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) [2025-03-04 03:03:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 352 transitions. [2025-03-04 03:03:23,363 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 352 transitions. Word has length 147 [2025-03-04 03:03:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:23,364 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 352 transitions. [2025-03-04 03:03:23,364 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) [2025-03-04 03:03:23,365 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 352 transitions. [2025-03-04 03:03:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 03:03:23,370 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:23,370 INFO L218 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] [2025-03-04 03:03:23,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 03:03:23,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 03:03:23,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:23,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash -116455250, now seen corresponding path program 1 times [2025-03-04 03:03:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357461907] [2025-03-04 03:03:23,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:27,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:27,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:27,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:27,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-03-04 03:03:29,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357461907] [2025-03-04 03:03:29,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357461907] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358445941] [2025-03-04 03:03:29,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:29,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:29,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:29,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:03:29,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 03:03:34,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 03:03:34,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 03:03:34,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:34,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:34,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 4449 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 03:03:34,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-03-04 03:03:35,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:03:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358445941] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:03:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:03:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-04 03:03:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186839636] [2025-03-04 03:03:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:03:35,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 03:03:35,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:35,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 03:03:35,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-04 03:03:35,027 INFO L87 Difference]: Start difference. First operand 257 states and 352 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 03:03:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:35,979 INFO L93 Difference]: Finished difference Result 411 states and 563 transitions. [2025-03-04 03:03:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 03:03:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-03-04 03:03:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:35,984 INFO L225 Difference]: With dead ends: 411 [2025-03-04 03:03:35,987 INFO L226 Difference]: Without dead ends: 242 [2025-03-04 03:03:35,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-04 03:03:35,989 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 0 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 03:03:35,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1202 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 03:03:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-04 03:03:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2025-03-04 03:03:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 156 states have (on average 1.25) internal successors, (195), 158 states have internal predecessors, (195), 65 states have call successors, (65), 19 states have call predecessors, (65), 20 states have return successors, (66), 64 states have call predecessors, (66), 64 states have call successors, (66) [2025-03-04 03:03:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 326 transitions. [2025-03-04 03:03:36,011 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 326 transitions. Word has length 147 [2025-03-04 03:03:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:36,011 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 326 transitions. [2025-03-04 03:03:36,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 03:03:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 326 transitions. [2025-03-04 03:03:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-04 03:03:36,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:36,014 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2025-03-04 03:03:36,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 03:03:36,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:36,215 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:36,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash -560337525, now seen corresponding path program 1 times [2025-03-04 03:03:36,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:36,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299822193] [2025-03-04 03:03:36,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:36,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:39,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-04 03:03:40,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 03:03:40,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:40,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2025-03-04 03:03:42,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:42,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299822193] [2025-03-04 03:03:42,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299822193] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:42,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227599263] [2025-03-04 03:03:42,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:42,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:42,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:03:42,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 03:03:46,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-04 03:03:47,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 03:03:47,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:47,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:47,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 4487 conjuncts, 100 conjuncts are in the unsatisfiable core [2025-03-04 03:03:47,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:47,167 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 19 treesize of output 1 [2025-03-04 03:03:47,212 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 41 treesize of output 1 [2025-03-04 03:03:47,235 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 19 treesize of output 1 [2025-03-04 03:03:47,259 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 19 treesize of output 1 [2025-03-04 03:03:47,311 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 30 treesize of output 1 [2025-03-04 03:03:50,857 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 31 treesize of output 15 [2025-03-04 03:03:55,869 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_15 Int)) (and (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_int#1)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_15 (select (select |c_#memory_int#1| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_15)))) (<= |c_ensure_array_list_has_allocated_data_member_#in~list.offset| v_ensure_array_list_has_allocated_data_member_~list.offset_15))) is different from true [2025-03-04 03:03:56,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:03:56,009 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 27 treesize of output 15 [2025-03-04 03:03:56,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15