./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:22:43,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:22:43,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:22:43,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:22:43,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:22:43,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:22:43,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:22:43,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:22:43,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:22:43,290 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:22:43,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:22:43,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:22:43,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:22:43,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:22:43,291 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:22:43,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:22:43,292 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:22:43,293 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:22:43,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:22:43,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:22:43,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:22:43,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:22:43,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:22:43,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:22:43,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:22:43,294 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 -> 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 [2025-03-17 07:22:43,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:22:43,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:22:43,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:22:43,512 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:22:43,513 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:22:43,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2025-03-17 07:22:44,664 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3866708/8218d40a0aea45ffb589ebc78dfd4f12/FLAGda6474550 [2025-03-17 07:22:45,163 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:22:45,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2025-03-17 07:22:45,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3866708/8218d40a0aea45ffb589ebc78dfd4f12/FLAGda6474550 [2025-03-17 07:22:45,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3866708/8218d40a0aea45ffb589ebc78dfd4f12 [2025-03-17 07:22:45,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:22:45,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:22:45,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:22:45,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:22:45,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:22:45,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:22:45" (1/1) ... [2025-03-17 07:22:45,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42cd60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:45, skipping insertion in model container [2025-03-17 07:22:45,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:22:45" (1/1) ... [2025-03-17 07:22:45,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:22:45,517 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_swap_harness_negated.i[4499,4512] [2025-03-17 07:22:45,528 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_swap_harness_negated.i[4559,4572] [2025-03-17 07:22:45,987 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:45,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:45,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:45,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:45,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:45,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,004 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,007 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,007 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,341 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,347 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,403 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,409 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,413 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:22:46,477 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:22:46,486 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_swap_harness_negated.i[4499,4512] [2025-03-17 07:22:46,486 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_swap_harness_negated.i[4559,4572] [2025-03-17 07:22:46,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7738-7749] [2025-03-17 07:22:46,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,675 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:22:46,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:22:46,844 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:22:46,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46 WrapperNode [2025-03-17 07:22:46,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:22:46,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:22:46,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:22:46,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:22:46,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:46,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:46,950 INFO L138 Inliner]: procedures = 687, calls = 1963, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 791 [2025-03-17 07:22:46,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:22:46,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:22:46,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:22:46,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:22:46,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:46,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:46,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,018 INFO L175 MemorySlicer]: Split 355 memory accesses to 8 slices as follows [2, 238, 5, 7, 81, 5, 3, 14]. 67 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 0, 0, 5, 0, 1, 5]. The 258 writes are split as follows [0, 232, 2, 2, 17, 2, 1, 2]. [2025-03-17 07:22:47,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,055 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:22:47,087 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:22:47,087 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:22:47,087 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:22:47,088 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (1/1) ... [2025-03-17 07:22:47,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:22:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:22:47,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 07:22:47,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 07:22:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-17 07:22:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-17 07:22:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:22:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-17 07:22:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-17 07:22:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-17 07:22:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:22:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:22:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:22:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:22:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:22:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:22:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:22:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:22:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:22:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:22:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:22:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:22:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 07:22:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 07:22:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:22:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:22:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:22:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-17 07:22:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-03-17 07:22:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:22:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:22:47,391 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:22:47,392 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:22:47,424 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: havoc #t~malloc583.base, #t~malloc583.offset; [2025-03-17 07:22:47,449 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 07:22:47,482 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:22:47,509 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-03-17 07:22:47,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8239: havoc aws_priority_queue_backpointers_valid_#t~ret876#1;havoc aws_priority_queue_backpointers_valid_#t~short877#1; [2025-03-17 07:22:47,671 INFO L1322 $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; [2025-03-17 07:22:47,675 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:22:47,693 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8153: havoc ~node~1.base, ~node~1.offset; [2025-03-17 07:22:52,920 INFO L? ?]: Removed 180 outVars from TransFormulas that were not future-live. [2025-03-17 07:22:52,921 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:22:52,935 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:22:52,936 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:22:52,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:22:52 BoogieIcfgContainer [2025-03-17 07:22:52,938 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:22:52,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:22:52,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:22:52,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:22:52,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:22:45" (1/3) ... [2025-03-17 07:22:52,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:22:52, skipping insertion in model container [2025-03-17 07:22:52,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:22:46" (2/3) ... [2025-03-17 07:22:52,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:22:52, skipping insertion in model container [2025-03-17 07:22:52,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:22:52" (3/3) ... [2025-03-17 07:22:52,947 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_swap_harness_negated.i [2025-03-17 07:22:52,960 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:22:52,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_swap_harness_negated.i that has 18 procedures, 211 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 07:22:53,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:22:53,023 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;@20d03c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:22:53,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:22:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 133 states have (on average 1.2255639097744362) internal successors, (163), 134 states have internal predecessors, (163), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-17 07:22:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 07:22:53,038 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:22:53,039 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-03-17 07:22:53,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:22:53,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:22:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1033926873, now seen corresponding path program 1 times [2025-03-17 07:22:53,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:22:53,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589539915] [2025-03-17 07:22:53,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:22:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:22:57,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:22:57,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:22:57,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:22:57,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:22:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2025-03-17 07:22:58,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:22:58,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589539915] [2025-03-17 07:22:58,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589539915] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:22:58,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843309325] [2025-03-17 07:22:58,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:22:58,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:22:58,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:22:58,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:22:58,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:23:02,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:23:02,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:23:02,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:02,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:03,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 4500 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:23:03,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:23:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-17 07:23:03,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:23:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843309325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:23:03,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:23:03,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:23:03,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64068879] [2025-03-17 07:23:03,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:23:03,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:23:03,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:23:03,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:23:03,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:23:03,056 INFO L87 Difference]: Start difference. First operand has 211 states, 133 states have (on average 1.2255639097744362) internal successors, (163), 134 states have internal predecessors, (163), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2025-03-17 07:23:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:23:03,096 INFO L93 Difference]: Finished difference Result 401 states and 564 transitions. [2025-03-17 07:23:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:23:03,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 139 [2025-03-17 07:23:03,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:23:03,109 INFO L225 Difference]: With dead ends: 401 [2025-03-17 07:23:03,109 INFO L226 Difference]: Without dead ends: 208 [2025-03-17 07:23:03,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:23:03,115 INFO L435 NwaCegarLoop]: 279 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, 279 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 [2025-03-17 07:23:03,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:23:03,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-03-17 07:23:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-03-17 07:23:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 131 states have (on average 1.213740458015267) internal successors, (159), 132 states have internal predecessors, (159), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2025-03-17 07:23:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 276 transitions. [2025-03-17 07:23:03,159 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 276 transitions. Word has length 139 [2025-03-17 07:23:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:23:03,160 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 276 transitions. [2025-03-17 07:23:03,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2025-03-17 07:23:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 276 transitions. [2025-03-17 07:23:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 07:23:03,163 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:23:03,163 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-03-17 07:23:03,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 07:23:03,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 07:23:03,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:23:03,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:23:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -403596988, now seen corresponding path program 1 times [2025-03-17 07:23:03,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:23:03,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759496084] [2025-03-17 07:23:03,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:03,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:23:07,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:23:07,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:23:07,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:07,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-03-17 07:23:10,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:23:10,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759496084] [2025-03-17 07:23:10,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759496084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:23:10,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:23:10,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 07:23:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16400942] [2025-03-17 07:23:10,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:23:10,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 07:23:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:23:10,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 07:23:10,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 07:23:10,470 INFO L87 Difference]: Start difference. First operand 208 states and 276 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2025-03-17 07:23:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:23:11,017 INFO L93 Difference]: Finished difference Result 218 states and 288 transitions. [2025-03-17 07:23:11,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 07:23:11,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 139 [2025-03-17 07:23:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:23:11,024 INFO L225 Difference]: With dead ends: 218 [2025-03-17 07:23:11,024 INFO L226 Difference]: Without dead ends: 216 [2025-03-17 07:23:11,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:23:11,026 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 3 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 07:23:11,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1345 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 07:23:11,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-03-17 07:23:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2025-03-17 07:23:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 135 states have (on average 1.2074074074074075) internal successors, (163), 137 states have internal predecessors, (163), 60 states have call successors, (60), 18 states have call predecessors, (60), 19 states have return successors, (62), 59 states have call predecessors, (62), 59 states have call successors, (62) [2025-03-17 07:23:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 285 transitions. [2025-03-17 07:23:11,044 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 285 transitions. Word has length 139 [2025-03-17 07:23:11,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:23:11,044 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 285 transitions. [2025-03-17 07:23:11,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2025-03-17 07:23:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 285 transitions. [2025-03-17 07:23:11,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-17 07:23:11,049 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:23:11,049 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:23:11,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 07:23:11,050 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:23:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:23:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1210682670, now seen corresponding path program 1 times [2025-03-17 07:23:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:23:11,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669571524] [2025-03-17 07:23:11,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:11,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:23:15,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-17 07:23:15,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-17 07:23:15,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:15,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 07:23:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:23:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669571524] [2025-03-17 07:23:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669571524] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:23:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573539296] [2025-03-17 07:23:17,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:17,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:23:17,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:23:17,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:23:17,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 07:23:21,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-17 07:23:22,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-17 07:23:22,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:22,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:22,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 4556 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 07:23:22,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:23:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 07:23:23,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:23:23,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573539296] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:23:23,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:23:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2025-03-17 07:23:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380571952] [2025-03-17 07:23:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:23:23,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 07:23:23,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:23:23,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 07:23:23,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-17 07:23:23,841 INFO L87 Difference]: Start difference. First operand 215 states and 285 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-17 07:23:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:23:25,308 INFO L93 Difference]: Finished difference Result 385 states and 506 transitions. [2025-03-17 07:23:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 07:23:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 147 [2025-03-17 07:23:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:23:25,310 INFO L225 Difference]: With dead ends: 385 [2025-03-17 07:23:25,310 INFO L226 Difference]: Without dead ends: 169 [2025-03-17 07:23:25,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-03-17 07:23:25,312 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 60 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-17 07:23:25,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1134 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-17 07:23:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-03-17 07:23:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 168. [2025-03-17 07:23:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 07:23:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 221 transitions. [2025-03-17 07:23:25,325 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 221 transitions. Word has length 147 [2025-03-17 07:23:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:23:25,325 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 221 transitions. [2025-03-17 07:23:25,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-17 07:23:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 221 transitions. [2025-03-17 07:23:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-03-17 07:23:25,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:23:25,327 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-03-17 07:23:25,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 07:23:25,527 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,SelfDestructingSolverStorable2 [2025-03-17 07:23:25,528 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:23:25,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:23:25,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1947334149, now seen corresponding path program 1 times [2025-03-17 07:23:25,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:23:25,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993410362] [2025-03-17 07:23:25,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:23:29,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-17 07:23:29,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-17 07:23:29,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:29,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-03-17 07:23:31,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:23:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993410362] [2025-03-17 07:23:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993410362] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:23:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508639287] [2025-03-17 07:23:31,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:31,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:23:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:23:31,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:23:31,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 07:23:35,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-17 07:23:36,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-17 07:23:36,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:23:36,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:23:36,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 4511 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-03-17 07:23:36,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:23:36,900 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 13 treesize of output 9 [2025-03-17 07:23:36,939 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 13 treesize of output 9 [2025-03-17 07:23:39,790 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#4.offset|))) is different from true [2025-03-17 07:23:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 07:23:39,894 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 [2025-03-17 07:23:39,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 07:23:39,952 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 [2025-03-17 07:23:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 114 proven. 16 refuted. 0 times theorem prover too weak. 81 trivial. 2 not checked. [2025-03-17 07:23:41,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 07:23:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-03-17 07:23:45,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508639287] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 07:23:45,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 07:23:45,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 8] total 21 [2025-03-17 07:23:45,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397348017] [2025-03-17 07:23:45,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 07:23:45,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 07:23:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:23:45,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 07:23:45,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=333, Unknown=1, NotChecked=36, Total=420 [2025-03-17 07:23:45,559 INFO L87 Difference]: Start difference. First operand 168 states and 221 transitions. Second operand has 21 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 9 states have call successors, (43), 5 states have call predecessors, (43), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2025-03-17 07:23:49,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:23:54,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:23:58,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:24:03,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:24:07,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:24:11,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []