/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 02:28:14,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 02:28:14,396 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 02:28:14,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 02:28:14,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 02:28:14,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 02:28:14,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 02:28:14,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 02:28:14,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 02:28:14,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 02:28:14,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 02:28:14,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 02:28:14,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 02:28:14,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 02:28:14,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 02:28:14,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 02:28:14,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 02:28:14,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 02:28:14,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 02:28:14,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 02:28:14,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 02:28:14,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 02:28:14,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 02:28:14,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 02:28:14,432 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 02:28:14,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 02:28:14,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:28:14,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 02:28:14,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 02:28:14,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 02:28:14,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 02:28:14,436 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:14,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 02:28:14,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 02:28:14,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 02:28:14,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 02:28:14,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 02:28:14,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i [2024-11-05 02:28:15,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 02:28:16,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 02:28:16,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i [2024-11-05 02:28:16,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4930759d5/eaab0e67d86d4ffb8c16c6eb132b6a25/FLAGebef38f28 [2024-11-05 02:28:16,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4930759d5/eaab0e67d86d4ffb8c16c6eb132b6a25 [2024-11-05 02:28:16,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 02:28:16,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 02:28:16,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 02:28:16,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 02:28:16,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 02:28:16,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:28:16" (1/1) ... [2024-11-05 02:28:16,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315e3b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:16, skipping insertion in model container [2024-11-05 02:28:16,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:28:16" (1/1) ... [2024-11-05 02:28:16,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:28:16,654 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2024-11-05 02:28:16,661 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2024-11-05 02:28:17,042 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,106 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,107 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,107 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,113 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,114 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,115 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,115 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,115 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,115 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,116 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,118 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,118 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,119 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,120 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,131 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,133 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,133 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,134 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,134 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,135 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,135 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,136 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,137 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,138 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,138 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,334 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,334 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,335 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,335 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,420 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:17,441 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 02:28:17,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:28:17,460 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2024-11-05 02:28:17,460 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2024-11-05 02:28:17,473 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,481 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,481 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,482 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,484 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,485 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,485 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,485 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,486 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,486 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,486 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,487 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,487 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,488 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,488 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,491 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,491 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,491 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,491 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,492 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,492 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,493 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,493 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,493 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,493 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,494 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,494 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,520 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,521 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,521 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,521 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,540 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:17,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:17,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 02:28:17,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2024-11-05 02:28:17,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2024-11-05 02:28:17,585 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,585 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,585 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,585 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,593 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,593 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,595 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,595 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,595 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,595 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:17,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:17,804 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 02:28:17,811 INFO L204 MainTranslator]: Completed translation [2024-11-05 02:28:17,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17 WrapperNode [2024-11-05 02:28:17,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 02:28:17,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 02:28:17,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 02:28:17,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 02:28:17,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,900 INFO L138 Inliner]: procedures = 687, calls = 1048, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 77 [2024-11-05 02:28:17,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 02:28:17,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 02:28:17,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 02:28:17,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 02:28:17,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,936 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 5, 17]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2024-11-05 02:28:17,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 02:28:17,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 02:28:17,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 02:28:17,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 02:28:17,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (1/1) ... [2024-11-05 02:28:17,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:28:17,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 02:28:17,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-05 02:28:17,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-05 02:28:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 02:28:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 02:28:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 02:28:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 02:28:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 02:28:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 02:28:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:28:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:28:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 02:28:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 02:28:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 02:28:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 02:28:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 02:28:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 02:28:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 02:28:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 02:28:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:28:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:28:18,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 02:28:18,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 02:28:18,715 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-05 02:28:18,715 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 02:28:18,724 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 02:28:18,724 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-05 02:28:18,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:28:18 BoogieIcfgContainer [2024-11-05 02:28:18,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 02:28:18,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 02:28:18,726 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 02:28:18,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 02:28:18,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 02:28:16" (1/3) ... [2024-11-05 02:28:18,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65449b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:28:18, skipping insertion in model container [2024-11-05 02:28:18,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:17" (2/3) ... [2024-11-05 02:28:18,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65449b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:28:18, skipping insertion in model container [2024-11-05 02:28:18,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:28:18" (3/3) ... [2024-11-05 02:28:18,729 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_insert_after_harness.i [2024-11-05 02:28:18,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 02:28:18,740 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 02:28:18,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 02:28:18,786 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;@5d9daa4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 02:28:18,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 02:28:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 38 states have internal predecessors, (44), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-05 02:28:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-05 02:28:18,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:18,798 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:18,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:18,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash 901746988, now seen corresponding path program 1 times [2024-11-05 02:28:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212855989] [2024-11-05 02:28:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:18,809 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:18,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:18,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:18,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-05 02:28:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:18,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 02:28:18,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:19,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:19,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:19,044 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-05 02:28:19,045 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:19,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212855989] [2024-11-05 02:28:19,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1212855989] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:28:19,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:28:19,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 02:28:19,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356168334] [2024-11-05 02:28:19,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:19,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 02:28:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 02:28:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:28:19,070 INFO L87 Difference]: Start difference. First operand has 63 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 38 states have internal predecessors, (44), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-05 02:28:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:19,092 INFO L93 Difference]: Finished difference Result 122 states and 174 transitions. [2024-11-05 02:28:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 02:28:19,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-05 02:28:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:19,103 INFO L225 Difference]: With dead ends: 122 [2024-11-05 02:28:19,103 INFO L226 Difference]: Without dead ends: 58 [2024-11-05 02:28:19,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:28:19,109 INFO L432 NwaCegarLoop]: 82 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, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:19,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:28:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-05 02:28:19,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-05 02:28:19,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-05 02:28:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2024-11-05 02:28:19,144 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 34 [2024-11-05 02:28:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:19,145 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2024-11-05 02:28:19,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-05 02:28:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2024-11-05 02:28:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-05 02:28:19,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:19,146 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:19,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:19,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:19,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:19,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash 99533352, now seen corresponding path program 1 times [2024-11-05 02:28:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:19,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687638961] [2024-11-05 02:28:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:19,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:19,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:19,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-05 02:28:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:19,547 WARN L253 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-05 02:28:19,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:19,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:19,692 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 43 treesize of output 11 [2024-11-05 02:28:19,701 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 35 treesize of output 19 [2024-11-05 02:28:19,755 INFO L349 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2024-11-05 02:28:19,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 45 [2024-11-05 02:28:19,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-05 02:28:20,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 119 [2024-11-05 02:28:20,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:20,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:20,923 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:21,066 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-05 02:28:21,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 598 treesize of output 409 [2024-11-05 02:28:21,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:21,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:21,105 INFO L349 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2024-11-05 02:28:21,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 211 treesize of output 77 [2024-11-05 02:28:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:21,145 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 26 treesize of output 26 [2024-11-05 02:28:21,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 12 treesize of output 8 [2024-11-05 02:28:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:22,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-05 02:28:29,265 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:29,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687638961] [2024-11-05 02:28:29,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1687638961] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:29,265 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:29,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 11] imperfect sequences [] total 24 [2024-11-05 02:28:29,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356699969] [2024-11-05 02:28:29,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:29,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-05 02:28:29,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-05 02:28:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-05 02:28:29,268 INFO L87 Difference]: Start difference. First operand 58 states and 77 transitions. Second operand has 24 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-05 02:28:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:42,006 INFO L93 Difference]: Finished difference Result 79 states and 102 transitions. [2024-11-05 02:28:42,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-05 02:28:42,007 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 34 [2024-11-05 02:28:42,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:42,009 INFO L225 Difference]: With dead ends: 79 [2024-11-05 02:28:42,009 INFO L226 Difference]: Without dead ends: 77 [2024-11-05 02:28:42,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2024-11-05 02:28:42,013 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 96 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:42,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 518 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-05 02:28:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-05 02:28:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2024-11-05 02:28:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 46 states have internal predecessors, (51), 21 states have call successors, (21), 6 states have call predecessors, (21), 7 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2024-11-05 02:28:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 96 transitions. [2024-11-05 02:28:42,030 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 96 transitions. Word has length 34 [2024-11-05 02:28:42,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:42,030 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 96 transitions. [2024-11-05 02:28:42,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-05 02:28:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 96 transitions. [2024-11-05 02:28:42,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-05 02:28:42,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:42,031 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:42,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:42,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:42,232 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:42,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash -709813274, now seen corresponding path program 1 times [2024-11-05 02:28:42,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:42,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238555479] [2024-11-05 02:28:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:42,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:42,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-05 02:28:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:42,356 WARN L253 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-05 02:28:42,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:42,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:42,408 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 43 treesize of output 11 [2024-11-05 02:28:42,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:42,438 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 35 treesize of output 19 [2024-11-05 02:28:42,464 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 14 treesize of output 15 [2024-11-05 02:28:42,480 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 14 treesize of output 15 [2024-11-05 02:28:42,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:42,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2024-11-05 02:28:42,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-05 02:28:42,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:42,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,250 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,262 INFO L349 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2024-11-05 02:28:43,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 278 treesize of output 91 [2024-11-05 02:28:43,266 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-05 02:28:43,294 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,326 INFO L349 Elim1Store]: treesize reduction 76, result has 12.6 percent of original size [2024-11-05 02:28:43,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 300 treesize of output 116 [2024-11-05 02:28:43,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2024-11-05 02:28:43,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,431 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,458 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-05 02:28:43,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 280 treesize of output 115 [2024-11-05 02:28:43,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2024-11-05 02:28:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,495 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,523 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-05 02:28:43,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 279 treesize of output 114 [2024-11-05 02:28:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2024-11-05 02:28:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,561 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,565 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,566 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:43,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 289 treesize of output 1 [2024-11-05 02:28:43,572 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,578 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,579 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:43,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:43,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:43,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 267 treesize of output 1 [2024-11-05 02:28:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:44,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-05 02:28:44,969 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:44,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238555479] [2024-11-05 02:28:44,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1238555479] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:28:44,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:28:44,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2024-11-05 02:28:44,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064587385] [2024-11-05 02:28:44,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:44,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 02:28:44,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:44,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 02:28:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-05 02:28:44,970 INFO L87 Difference]: Start difference. First operand 73 states and 96 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-05 02:28:46,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:46,294 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2024-11-05 02:28:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-05 02:28:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-05 02:28:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:46,296 INFO L225 Difference]: With dead ends: 149 [2024-11-05 02:28:46,296 INFO L226 Difference]: Without dead ends: 83 [2024-11-05 02:28:46,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-05 02:28:46,297 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 15 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:46,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-05 02:28:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-05 02:28:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2024-11-05 02:28:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 50 states have (on average 1.16) internal successors, (58), 53 states have internal predecessors, (58), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 20 states have call predecessors, (27), 20 states have call successors, (27) [2024-11-05 02:28:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 106 transitions. [2024-11-05 02:28:46,311 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 106 transitions. Word has length 34 [2024-11-05 02:28:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:46,312 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 106 transitions. [2024-11-05 02:28:46,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-05 02:28:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2024-11-05 02:28:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-05 02:28:46,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:46,314 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:46,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:46,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:46,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:46,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:46,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1102840284, now seen corresponding path program 1 times [2024-11-05 02:28:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:46,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993394461] [2024-11-05 02:28:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:46,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:46,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:46,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:46,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-05 02:28:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:46,638 WARN L253 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-11-05 02:28:46,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:46,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:46,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2024-11-05 02:28:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-05 02:28:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-05 02:28:46,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 1 [2024-11-05 02:28:46,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2024-11-05 02:28:46,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-05 02:28:46,845 INFO L349 Elim1Store]: treesize reduction 50, result has 35.1 percent of original size [2024-11-05 02:28:46,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 112 [2024-11-05 02:28:46,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 19 [2024-11-05 02:28:46,888 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:46,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 1 [2024-11-05 02:28:46,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 22 [2024-11-05 02:28:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:46,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 13 treesize of output 16 [2024-11-05 02:28:46,992 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 8 treesize of output 1 [2024-11-05 02:28:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:47,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:47,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:47,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:47,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 83 [2024-11-05 02:28:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:47,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2024-11-05 02:28:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:47,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-05 02:28:47,807 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:47,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-05 02:28:48,012 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:48,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993394461] [2024-11-05 02:28:48,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [993394461] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:28:48,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:28:48,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 13 [2024-11-05 02:28:48,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991363130] [2024-11-05 02:28:48,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:48,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 02:28:48,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:48,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 02:28:48,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-05 02:28:48,014 INFO L87 Difference]: Start difference. First operand 80 states and 106 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 02:28:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:48,184 INFO L93 Difference]: Finished difference Result 153 states and 205 transitions. [2024-11-05 02:28:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 02:28:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-11-05 02:28:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:48,186 INFO L225 Difference]: With dead ends: 153 [2024-11-05 02:28:48,186 INFO L226 Difference]: Without dead ends: 80 [2024-11-05 02:28:48,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-05 02:28:48,187 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 4 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:48,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 205 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 02:28:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-05 02:28:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2024-11-05 02:28:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 48 states have internal predecessors, (52), 20 states have call successors, (20), 6 states have call predecessors, (20), 7 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-05 02:28:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-05 02:28:48,198 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 34 [2024-11-05 02:28:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:48,198 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-05 02:28:48,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 02:28:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-05 02:28:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-05 02:28:48,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:48,199 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:48,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-05 02:28:48,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:48,399 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:48,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:48,400 INFO L85 PathProgramCache]: Analyzing trace with hash 623664027, now seen corresponding path program 1 times [2024-11-05 02:28:48,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:48,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918129697] [2024-11-05 02:28:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:48,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:48,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:48,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:48,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-05 02:28:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:48,530 WARN L253 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-11-05 02:28:48,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:48,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:48,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-05 02:28:48,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 1 [2024-11-05 02:28:48,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2024-11-05 02:28:48,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-05 02:28:48,650 INFO L349 Elim1Store]: treesize reduction 50, result has 35.1 percent of original size [2024-11-05 02:28:48,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 112 [2024-11-05 02:28:48,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 19 [2024-11-05 02:28:48,680 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:48,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 1 [2024-11-05 02:28:48,714 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 41 treesize of output 13 [2024-11-05 02:28:48,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 13 treesize of output 11 [2024-11-05 02:28:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,750 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 43 treesize of output 11 [2024-11-05 02:28:48,760 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 35 treesize of output 19 [2024-11-05 02:28:48,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 13 treesize of output 16 [2024-11-05 02:28:48,774 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 8 treesize of output 1 [2024-11-05 02:28:48,782 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 14 treesize of output 15 [2024-11-05 02:28:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:48,818 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 14 treesize of output 15 [2024-11-05 02:28:50,872 INFO L349 Elim1Store]: treesize reduction 591, result has 7.7 percent of original size [2024-11-05 02:28:50,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 1037 treesize of output 641 [2024-11-05 02:28:51,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:51,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 115 [2024-11-05 02:28:51,198 INFO L349 Elim1Store]: treesize reduction 224, result has 20.6 percent of original size [2024-11-05 02:28:51,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 378 treesize of output 177 [2024-11-05 02:29:01,046 INFO L349 Elim1Store]: treesize reduction 233, result has 63.0 percent of original size [2024-11-05 02:29:01,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 1 disjoint index pairs (out of 120 index pairs), introduced 23 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 628 [2024-11-05 02:29:01,462 INFO L224 Elim1Store]: Index analysis took 376 ms [2024-11-05 02:29:06,572 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 266 DAG size of output: 214 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-05 02:29:06,572 INFO L349 Elim1Store]: treesize reduction 183, result has 67.8 percent of original size [2024-11-05 02:29:06,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 1 disjoint index pairs (out of 120 index pairs), introduced 17 new quantified variables, introduced 117 case distinctions, treesize of input 212 treesize of output 516 [2024-11-05 02:29:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:29:53,705 INFO L311 TraceCheckSpWp]: Computing backward predicates...