/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_pop_front_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 02:28:58,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 02:28:58,962 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 02:28:58,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 02:28:58,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 02:28:58,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 02:28:58,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 02:28:58,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 02:28:58,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 02:28:58,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 02:28:58,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 02:28:58,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 02:28:58,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 02:28:58,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 02:28:58,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 02:28:58,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 02:28:58,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 02:28:58,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 02:28:59,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 02:28:59,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 02:28:59,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 02:28:59,001 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 02:28:59,001 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 02:28:59,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 02:28:59,002 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 02:28:59,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 02:28:59,002 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 02:28:59,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 02:28:59,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 02:28:59,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 02:28:59,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 02:28:59,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:28:59,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 02:28:59,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 02:28:59,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 02:28:59,004 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 02:28:59,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 02:28:59,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 02:28:59,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 02:28:59,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 02:28:59,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 02:28:59,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:59,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 02:28:59,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 02:28:59,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 02:28:59,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 02:28:59,257 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 02:28:59,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i [2024-11-05 02:29:00,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 02:29:01,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 02:29:01,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i [2024-11-05 02:29:01,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69cb605ce/ab9a540e597e454e9a8bab1b5a29b682/FLAG53e76ce1d [2024-11-05 02:29:01,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69cb605ce/ab9a540e597e454e9a8bab1b5a29b682 [2024-11-05 02:29:01,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 02:29:01,299 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 02:29:01,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 02:29:01,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 02:29:01,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 02:29:01,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:29:01" (1/1) ... [2024-11-05 02:29:01,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139d261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:01, skipping insertion in model container [2024-11-05 02:29:01,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:29:01" (1/1) ... [2024-11-05 02:29:01,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:29:01,695 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_pop_front_harness.i[4499,4512] [2024-11-05 02:29:01,705 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_pop_front_harness.i[4559,4572] [2024-11-05 02:29:02,511 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 02:29:02,612 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 02:29:02,613 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 02:29:02,613 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 02:29:02,623 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 02:29:02,625 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,626 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,626 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,627 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 02:29:02,627 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,628 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,631 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 02:29:02,632 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 02:29:02,634 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 02:29:02,635 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 02:29:02,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,644 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 02:29:02,644 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,644 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 02:29:02,646 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,648 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 02:29:02,648 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,648 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 02:29:02,650 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,652 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 02:29:02,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,653 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 02:29:02,653 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,654 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:02,908 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 02:29:02,908 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 02:29:02,909 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 02:29:02,909 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 02:29:03,093 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 02:29:03,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:29:03,139 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 02:29:03,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:29:03,192 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_pop_front_harness.i[4499,4512] [2024-11-05 02:29:03,192 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_pop_front_harness.i[4559,4572] [2024-11-05 02:29:03,234 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 02:29:03,255 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 02:29:03,256 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 02:29:03,256 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 02:29:03,267 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 02:29:03,268 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,268 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,269 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,269 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 02:29:03,270 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,270 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,273 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 02:29:03,274 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 02:29:03,276 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 02:29:03,276 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 02:29:03,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,281 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 02:29:03,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,281 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 02:29:03,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,283 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 02:29:03,286 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,287 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 02:29:03,288 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,289 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 02:29:03,289 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,289 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 02:29:03,290 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,290 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,337 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 02:29:03,338 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 02:29:03,338 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 02:29:03,339 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 02:29:03,369 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 02:29:03,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:29:03,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 02:29:03,410 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_pop_front_harness.i[4499,4512] [2024-11-05 02:29:03,411 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_pop_front_harness.i[4559,4572] [2024-11-05 02:29:03,457 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,457 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,457 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,458 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,459 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,466 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,467 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,468 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,469 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,470 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,474 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,475 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,475 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:29:03,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:29:03,768 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 02:29:03,776 INFO L204 MainTranslator]: Completed translation [2024-11-05 02:29:03,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03 WrapperNode [2024-11-05 02:29:03,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 02:29:03,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 02:29:03,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 02:29:03,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 02:29:03,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,894 INFO L138 Inliner]: procedures = 687, calls = 1044, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 227 [2024-11-05 02:29:03,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 02:29:03,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 02:29:03,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 02:29:03,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 02:29:03,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,916 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,962 INFO L175 MemorySlicer]: Split 43 memory accesses to 3 slices as follows [2, 5, 36]. 84 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 9 writes are split as follows [0, 0, 9]. [2024-11-05 02:29:03,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:03,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:04,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 02:29:04,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 02:29:04,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 02:29:04,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 02:29:04,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (1/1) ... [2024-11-05 02:29:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:29:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 02:29:04,044 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 02:29:04,051 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 02:29:04,072 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-05 02:29:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_remove [2024-11-05 02:29:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_remove [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 02:29:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:29:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-05 02:29:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-05 02:29:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 02:29:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-05 02:29:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-05 02:29:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-05 02:29:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-05 02:29:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-05 02:29:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-05 02:29:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-05 02:29:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-05 02:29:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 02:29:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 02:29:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-05 02:29:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-05 02:29:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:29:04,078 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:29:04,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 02:29:04,398 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 02:29:05,012 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-05 02:29:05,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 02:29:05,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 02:29:05,028 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-05 02:29:05,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:29:05 BoogieIcfgContainer [2024-11-05 02:29:05,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 02:29:05,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 02:29:05,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 02:29:05,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 02:29:05,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 02:29:01" (1/3) ... [2024-11-05 02:29:05,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:29:05, skipping insertion in model container [2024-11-05 02:29:05,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:29:03" (2/3) ... [2024-11-05 02:29:05,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:29:05, skipping insertion in model container [2024-11-05 02:29:05,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:29:05" (3/3) ... [2024-11-05 02:29:05,039 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_pop_front_harness.i [2024-11-05 02:29:05,055 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 02:29:05,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 02:29:05,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 02:29:05,135 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;@6f007a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 02:29:05,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 02:29:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-05 02:29:05,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-05 02:29:05,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:05,156 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:29:05,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:05,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1634297944, now seen corresponding path program 1 times [2024-11-05 02:29:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:05,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411520287] [2024-11-05 02:29:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:05,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:05,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:05,178 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 02:29:05,180 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 02:29:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:05,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 02:29:05,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-05 02:29:05,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-05 02:29:05,616 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:05,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411520287] [2024-11-05 02:29:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1411520287] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:29:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:29:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 02:29:05,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752261105] [2024-11-05 02:29:05,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:29:05,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 02:29:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 02:29:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:29:05,654 INFO L87 Difference]: Start difference. First operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-05 02:29:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:05,694 INFO L93 Difference]: Finished difference Result 266 states and 401 transitions. [2024-11-05 02:29:05,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 02:29:05,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-05 02:29:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:05,716 INFO L225 Difference]: With dead ends: 266 [2024-11-05 02:29:05,720 INFO L226 Difference]: Without dead ends: 132 [2024-11-05 02:29:05,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 230 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 02:29:05,731 INFO L432 NwaCegarLoop]: 183 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, 183 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 02:29:05,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:29:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-05 02:29:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-05 02:29:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 84 states have (on average 1.25) internal successors, (105), 85 states have internal predecessors, (105), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-05 02:29:05,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2024-11-05 02:29:05,789 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 116 [2024-11-05 02:29:05,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:05,789 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2024-11-05 02:29:05,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-05 02:29:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2024-11-05 02:29:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-05 02:29:05,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:05,796 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:29:05,801 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 02:29:05,996 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 02:29:05,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:05,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash 851280282, now seen corresponding path program 1 times [2024-11-05 02:29:05,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:05,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97490542] [2024-11-05 02:29:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:05,998 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:05,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:06,001 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 02:29:06,002 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 02:29:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:06,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 02:29:06,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-05 02:29:06,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-05 02:29:06,382 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:06,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97490542] [2024-11-05 02:29:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [97490542] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:29:06,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:29:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-05 02:29:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144970740] [2024-11-05 02:29:06,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:29:06,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 02:29:06,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 02:29:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-05 02:29:06,387 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 02:29:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:06,462 INFO L93 Difference]: Finished difference Result 247 states and 338 transitions. [2024-11-05 02:29:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 02:29:06,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2024-11-05 02:29:06,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:06,466 INFO L225 Difference]: With dead ends: 247 [2024-11-05 02:29:06,466 INFO L226 Difference]: Without dead ends: 135 [2024-11-05 02:29:06,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-05 02:29:06,472 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 02:29:06,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 517 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:29:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-05 02:29:06,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2024-11-05 02:29:06,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.244186046511628) internal successors, (107), 87 states have internal predecessors, (107), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-05 02:29:06,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 180 transitions. [2024-11-05 02:29:06,501 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 180 transitions. Word has length 116 [2024-11-05 02:29:06,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:06,505 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 180 transitions. [2024-11-05 02:29:06,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 02:29:06,506 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 180 transitions. [2024-11-05 02:29:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-05 02:29:06,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:06,507 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:29:06,514 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 02:29:06,708 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 02:29:06,708 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:06,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash -911862316, now seen corresponding path program 1 times [2024-11-05 02:29:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:06,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230710204] [2024-11-05 02:29:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:06,710 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:06,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:06,711 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 02:29:06,712 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 02:29:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:06,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 02:29:06,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-05 02:29:06,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-05 02:29:06,997 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:06,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230710204] [2024-11-05 02:29:06,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [230710204] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:29:06,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:29:06,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-05 02:29:06,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416098871] [2024-11-05 02:29:06,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:29:06,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 02:29:06,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:06,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 02:29:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-05 02:29:06,999 INFO L87 Difference]: Start difference. First operand 134 states and 180 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 02:29:07,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:07,047 INFO L93 Difference]: Finished difference Result 251 states and 343 transitions. [2024-11-05 02:29:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 02:29:07,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2024-11-05 02:29:07,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:07,053 INFO L225 Difference]: With dead ends: 251 [2024-11-05 02:29:07,053 INFO L226 Difference]: Without dead ends: 137 [2024-11-05 02:29:07,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-05 02:29:07,054 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 02:29:07,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 519 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:29:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-05 02:29:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-05 02:29:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 90 states have internal predecessors, (110), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-05 02:29:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 183 transitions. [2024-11-05 02:29:07,078 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 183 transitions. Word has length 116 [2024-11-05 02:29:07,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:07,078 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 183 transitions. [2024-11-05 02:29:07,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 02:29:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 183 transitions. [2024-11-05 02:29:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-05 02:29:07,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:07,082 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:29:07,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-05 02:29:07,282 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 02:29:07,283 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:07,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1271238514, now seen corresponding path program 1 times [2024-11-05 02:29:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:07,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388668673] [2024-11-05 02:29:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:07,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:07,287 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 02:29:07,288 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 02:29:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:07,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-05 02:29:07,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:07,552 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 02:29:07,696 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 02:29:07,716 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 02:29:07,734 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 02:29:07,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:29:07,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:29:07,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:29:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-05 02:29:09,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:11,875 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 1514 treesize of output 1498 [2024-11-05 02:29:11,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:29:11,999 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:29:12,003 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 242 treesize of output 234 [2024-11-05 02:29:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-05 02:29:12,669 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388668673] [2024-11-05 02:29:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [388668673] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:29:12,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:29:12,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-11-05 02:29:12,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922877966] [2024-11-05 02:29:12,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:29:12,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-05 02:29:12,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:12,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-05 02:29:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-05 02:29:12,674 INFO L87 Difference]: Start difference. First operand 137 states and 183 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-05 02:29:14,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:14,638 INFO L93 Difference]: Finished difference Result 273 states and 363 transitions. [2024-11-05 02:29:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-05 02:29:14,639 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 116 [2024-11-05 02:29:14,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:14,641 INFO L225 Difference]: With dead ends: 273 [2024-11-05 02:29:14,641 INFO L226 Difference]: Without dead ends: 138 [2024-11-05 02:29:14,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-05 02:29:14,643 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 10 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-05 02:29:14,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1216 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-05 02:29:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-05 02:29:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-05 02:29:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 90 states have (on average 1.2333333333333334) internal successors, (111), 91 states have internal predecessors, (111), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-05 02:29:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 184 transitions. [2024-11-05 02:29:14,656 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 184 transitions. Word has length 116 [2024-11-05 02:29:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:14,656 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 184 transitions. [2024-11-05 02:29:14,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-05 02:29:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 184 transitions. [2024-11-05 02:29:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-05 02:29:14,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:14,658 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:29:14,665 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 02:29:14,859 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 02:29:14,859 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:14,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2104858028, now seen corresponding path program 1 times [2024-11-05 02:29:14,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:14,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225316659] [2024-11-05 02:29:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:14,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:14,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:14,863 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 02:29:14,864 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 02:29:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:15,062 WARN L253 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 149 conjuncts are in the unsatisfiable core [2024-11-05 02:29:15,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:15,079 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 02:29:15,096 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 8 treesize of output 1 [2024-11-05 02:29:15,106 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 6 treesize of output 5 [2024-11-05 02:29:15,301 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 02:29:15,333 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 02:29:15,340 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 02:29:15,482 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:29:15,482 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:29:15,520 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:29:15,521 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:29:15,563 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 39 treesize of output 1 [2024-11-05 02:29:15,593 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:29:15,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 7 [2024-11-05 02:29:15,988 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:29:15,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 93 [2024-11-05 02:29:16,033 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 02:29:16,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 02:29:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 116 proven. 21 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-05 02:29:26,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-05 02:29:27,441 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:27,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225316659] [2024-11-05 02:29:27,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1225316659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:29:27,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:29:27,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6] total 24 [2024-11-05 02:29:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161070608] [2024-11-05 02:29:27,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:29:27,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-05 02:29:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:27,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-05 02:29:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-05 02:29:27,444 INFO L87 Difference]: Start difference. First operand 138 states and 184 transitions. Second operand has 24 states, 20 states have (on average 4.5) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (30), 4 states have call predecessors, (30), 9 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:29:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:37,440 INFO L93 Difference]: Finished difference Result 353 states and 475 transitions. [2024-11-05 02:29:37,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-05 02:29:37,441 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 4.5) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (30), 4 states have call predecessors, (30), 9 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) Word has length 118 [2024-11-05 02:29:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:37,444 INFO L225 Difference]: With dead ends: 353 [2024-11-05 02:29:37,444 INFO L226 Difference]: Without dead ends: 235 [2024-11-05 02:29:37,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 204 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2024-11-05 02:29:37,446 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 77 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-05 02:29:37,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1810 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-05 02:29:37,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-05 02:29:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2024-11-05 02:29:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 152 states have (on average 1.236842105263158) internal successors, (188), 156 states have internal predecessors, (188), 60 states have call successors, (60), 18 states have call predecessors, (60), 19 states have return successors, (65), 57 states have call predecessors, (65), 59 states have call successors, (65) [2024-11-05 02:29:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 313 transitions. [2024-11-05 02:29:37,500 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 313 transitions. Word has length 118 [2024-11-05 02:29:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:37,500 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 313 transitions. [2024-11-05 02:29:37,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 4.5) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (30), 4 states have call predecessors, (30), 9 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:29:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 313 transitions. [2024-11-05 02:29:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-05 02:29:37,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:37,502 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:29:37,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-05 02:29:37,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:37,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:37,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:37,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2112369774, now seen corresponding path program 1 times [2024-11-05 02:29:37,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:37,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768865692] [2024-11-05 02:29:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:37,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:37,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:37,705 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:29:37,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-05 02:29:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:37,912 WARN L253 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 162 conjuncts are in the unsatisfiable core [2024-11-05 02:29:37,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:37,934 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 02:29:37,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-05 02:29:37,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 02:29:38,164 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 02:29:38,182 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 02:29:38,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-05 02:29:38,353 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:29:38,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-05 02:29:38,386 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:29:38,386 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:29:38,446 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:29:38,447 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:29:38,534 INFO L349 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2024-11-05 02:29:38,534 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 44 treesize of output 72 [2024-11-05 02:29:38,554 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 12 treesize of output 11 [2024-11-05 02:29:38,574 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:29:38,575 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 12 treesize of output 1 [2024-11-05 02:29:38,653 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 25 treesize of output 17 [2024-11-05 02:29:38,661 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 9 treesize of output 7 [2024-11-05 02:29:38,879 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|)) (.cse2 (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|)) (.cse0 (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) (and (= |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) (= (_ bv0 64) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset|) (= (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) (_ bv8 64)) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) (= (select (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) (_ bv8 64)) (_ bv0 64)) (= (_ bv0 64) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset|) (or .cse0 (= (select .cse1 (_ bv8 64)) (_ bv0 64))) (= (select .cse1 (_ bv0 64)) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) (not (= |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base| (_ bv0 64))) (= (_ bv0 64) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset|) (= (_ bv0 64) (select .cse2 (_ bv0 64))) (= (_ bv0 64) (select .cse2 (_ bv8 64))) (= (_ bv0 64) (select .cse1 (_ bv16 64))) (= (_ bv0 64) (select .cse2 (_ bv16 64))) (or .cse0 (exists ((v_DerPreprocessor_5 (Array (_ BitVec 64) (_ BitVec 8))) (v_DerPreprocessor_4 (Array (_ BitVec 64) (_ BitVec 8)))) (let ((.cse3 (select (store (store |c_#memory_int#2| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|))) (and (= (store .cse3 (_ bv8 64) (select (select |c_#memory_int#2| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) (_ bv8 64))) v_DerPreprocessor_5) (= .cse3 (select |c_#memory_int#2| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|)))))))) is different from true [2024-11-05 02:29:39,029 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:29:39,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 216 treesize of output 150 [2024-11-05 02:29:39,074 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 02:29:39,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 02:29:39,180 INFO L349 Elim1Store]: treesize reduction 50, result has 48.5 percent of original size [2024-11-05 02:29:39,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 182 [2024-11-05 02:29:39,209 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 12 treesize of output 11 [2024-11-05 02:29:39,272 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-05 02:29:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:29:39,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2024-11-05 02:29:39,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:29:39,309 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 1 case distinctions, treesize of input 80 treesize of output 72 [2024-11-05 02:29:47,444 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 1 not checked. [2024-11-05 02:29:47,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:29:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-05 02:29:48,287 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:29:48,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768865692] [2024-11-05 02:29:48,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1768865692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:29:48,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:29:48,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 7] total 24 [2024-11-05 02:29:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696398767] [2024-11-05 02:29:48,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:29:48,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-05 02:29:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:29:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-05 02:29:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=427, Unknown=3, NotChecked=42, Total=552 [2024-11-05 02:29:48,290 INFO L87 Difference]: Start difference. First operand 232 states and 313 transitions. Second operand has 24 states, 22 states have (on average 4.363636363636363) internal successors, (96), 21 states have internal predecessors, (96), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:29:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:29:56,837 INFO L93 Difference]: Finished difference Result 441 states and 596 transitions. [2024-11-05 02:29:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-05 02:29:56,838 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.363636363636363) internal successors, (96), 21 states have internal predecessors, (96), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) Word has length 120 [2024-11-05 02:29:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:29:56,840 INFO L225 Difference]: With dead ends: 441 [2024-11-05 02:29:56,840 INFO L226 Difference]: Without dead ends: 245 [2024-11-05 02:29:56,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 209 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=109, Invalid=594, Unknown=3, NotChecked=50, Total=756 [2024-11-05 02:29:56,842 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 118 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 92 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 375 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-05 02:29:56,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1744 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1044 Invalid, 9 Unknown, 375 Unchecked, 7.6s Time] [2024-11-05 02:29:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-05 02:29:56,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 236. [2024-11-05 02:29:56,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 155 states have (on average 1.232258064516129) internal successors, (191), 160 states have internal predecessors, (191), 60 states have call successors, (60), 18 states have call predecessors, (60), 20 states have return successors, (67), 57 states have call predecessors, (67), 59 states have call successors, (67) [2024-11-05 02:29:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 318 transitions. [2024-11-05 02:29:56,896 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 318 transitions. Word has length 120 [2024-11-05 02:29:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:29:56,896 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 318 transitions. [2024-11-05 02:29:56,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.363636363636363) internal successors, (96), 21 states have internal predecessors, (96), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:29:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 318 transitions. [2024-11-05 02:29:56,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-05 02:29:56,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:29:56,898 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:29:56,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-05 02:29:57,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:57,099 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:29:57,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:29:57,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1654968155, now seen corresponding path program 1 times [2024-11-05 02:29:57,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:29:57,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893572305] [2024-11-05 02:29:57,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:29:57,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:29:57,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:29:57,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:29:57,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-05 02:29:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:29:57,283 WARN L253 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 165 conjuncts are in the unsatisfiable core [2024-11-05 02:29:57,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:29:57,296 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 02:29:57,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 02:29:57,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-05 02:29:57,542 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 02:29:57,557 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 02:29:57,686 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:29:57,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-05 02:29:57,723 INFO L349 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2024-11-05 02:29:57,723 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 44 treesize of output 72 [2024-11-05 02:29:57,733 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 12 treesize of output 11 [2024-11-05 02:29:57,763 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:29:57,764 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 12 treesize of output 1 [2024-11-05 02:29:57,795 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 25 treesize of output 17 [2024-11-05 02:29:57,800 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 9 treesize of output 7 [2024-11-05 02:29:57,819 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:29:57,819 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:29:57,855 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:29:57,855 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:29:58,208 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:29:58,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 173 treesize of output 119 [2024-11-05 02:29:58,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:29:58,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 5 treesize of output 3 [2024-11-05 02:29:58,254 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 02:29:58,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 02:30:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 17 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-05 02:30:06,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:30:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-05 02:30:07,908 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:30:07,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893572305] [2024-11-05 02:30:07,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [893572305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:30:07,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:30:07,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8] total 27 [2024-11-05 02:30:07,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24132132] [2024-11-05 02:30:07,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:30:07,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-05 02:30:07,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:30:07,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-05 02:30:07,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=596, Unknown=9, NotChecked=0, Total=702 [2024-11-05 02:30:07,910 INFO L87 Difference]: Start difference. First operand 236 states and 318 transitions. Second operand has 27 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:30:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:30:19,928 INFO L93 Difference]: Finished difference Result 463 states and 629 transitions. [2024-11-05 02:30:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-05 02:30:19,929 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) Word has length 122 [2024-11-05 02:30:19,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:30:19,931 INFO L225 Difference]: With dead ends: 463 [2024-11-05 02:30:19,931 INFO L226 Difference]: Without dead ends: 263 [2024-11-05 02:30:19,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 209 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=162, Invalid=1018, Unknown=10, NotChecked=0, Total=1190 [2024-11-05 02:30:19,933 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 184 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 137 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-05 02:30:19,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1602 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1160 Invalid, 5 Unknown, 0 Unchecked, 10.5s Time] [2024-11-05 02:30:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-05 02:30:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 240. [2024-11-05 02:30:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 159 states have (on average 1.2389937106918238) internal successors, (197), 164 states have internal predecessors, (197), 60 states have call successors, (60), 18 states have call predecessors, (60), 20 states have return successors, (67), 57 states have call predecessors, (67), 59 states have call successors, (67) [2024-11-05 02:30:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 324 transitions. [2024-11-05 02:30:19,991 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 324 transitions. Word has length 122 [2024-11-05 02:30:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:30:19,992 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 324 transitions. [2024-11-05 02:30:19,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.0) internal successors, (100), 24 states have internal predecessors, (100), 10 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (29), 11 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-05 02:30:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 324 transitions. [2024-11-05 02:30:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-05 02:30:19,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:30:19,995 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:30:20,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-05 02:30:20,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:30:20,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:30:20,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:30:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2069312651, now seen corresponding path program 1 times [2024-11-05 02:30:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:30:20,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098865354] [2024-11-05 02:30:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:30:20,196 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:30:20,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:30:20,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:30:20,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-05 02:30:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:30:20,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-11-05 02:30:20,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:30:20,411 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 02:30:20,426 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 6 treesize of output 5 [2024-11-05 02:30:20,432 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 8 treesize of output 1 [2024-11-05 02:30:20,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-05 02:30:20,579 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 02:30:20,595 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 02:30:20,698 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:30:20,698 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:30:20,737 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:30:20,737 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:30:20,760 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:30:20,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 7 [2024-11-05 02:30:20,765 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 02:30:21,036 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:30:21,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 93 [2024-11-05 02:30:21,077 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 02:30:21,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 02:30:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 108 proven. 17 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-05 02:30:28,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:30:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-05 02:30:28,365 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:30:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098865354] [2024-11-05 02:30:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1098865354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:30:28,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:30:28,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 3] total 19 [2024-11-05 02:30:28,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751117158] [2024-11-05 02:30:28,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:30:28,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-05 02:30:28,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:30:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-05 02:30:28,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-05 02:30:28,367 INFO L87 Difference]: Start difference. First operand 240 states and 324 transitions. Second operand has 19 states, 17 states have (on average 5.470588235294118) internal successors, (93), 16 states have internal predecessors, (93), 8 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (29), 9 states have call predecessors, (29), 8 states have call successors, (29)