/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 13:59:42,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 13:59:42,726 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 13:59:42,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 13:59:42,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 13:59:42,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 13:59:42,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 13:59:42,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 13:59:42,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 13:59:42,745 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 13:59:42,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 13:59:42,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 13:59:42,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 13:59:42,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 13:59:42,747 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 13:59:42,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 13:59:42,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 13:59:42,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 13:59:42,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 13:59:42,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 13:59:42,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 13:59:42,753 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 13:59:42,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 13:59:42,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 13:59:42,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 13:59:42,755 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 13:59:42,756 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 13:59:42,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 13:59:42,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 13:59:42,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 13:59:42,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 13:59:42,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-05 13:59:42,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 13:59:42,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 13:59:42,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 13:59:42,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 13:59:42,997 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 13:59:42,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2024-11-05 13:59:44,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 13:59:44,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 13:59:44,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2024-11-05 13:59:44,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4368d16/590d5bf04b4744cfb3c4372aebd80d6d/FLAG4a77f9606 [2024-11-05 13:59:44,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4368d16/590d5bf04b4744cfb3c4372aebd80d6d [2024-11-05 13:59:44,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 13:59:44,867 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 13:59:44,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 13:59:44,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 13:59:44,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 13:59:44,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:59:44" (1/1) ... [2024-11-05 13:59:44,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225e1a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:44, skipping insertion in model container [2024-11-05 13:59:44,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:59:44" (1/1) ... [2024-11-05 13:59:44,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 13:59:45,178 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_node_reset_harness-1.i[4500,4513] [2024-11-05 13:59:45,185 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_node_reset_harness-1.i[4560,4573] [2024-11-05 13:59:45,646 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 13:59:45,702 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 13:59:45,703 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 13:59:45,704 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 13:59:45,713 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 13:59:45,716 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,716 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,716 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,717 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 13:59:45,717 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,718 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,723 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 13:59:45,723 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 13:59:45,725 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 13:59:45,725 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 13:59:45,735 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,736 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 13:59:45,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,736 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 13:59:45,738 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,738 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 13:59:45,739 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,739 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 13:59:45,740 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,741 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 13:59:45,741 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,741 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 13:59:45,741 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:45,945 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 13:59:45,945 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 13:59:45,946 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 13:59:45,946 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 13:59:46,030 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 13:59:46,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:59:46,063 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 13:59:46,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 13:59:46,102 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_node_reset_harness-1.i[4500,4513] [2024-11-05 13:59:46,102 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_node_reset_harness-1.i[4560,4573] [2024-11-05 13:59:46,125 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 13:59:46,132 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 13:59:46,132 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 13:59:46,133 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 13:59:46,135 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 13:59:46,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,136 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 13:59:46,136 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,137 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,138 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 13:59:46,138 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 13:59:46,139 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 13:59:46,139 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 13:59:46,141 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,141 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 13:59:46,141 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,142 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 13:59:46,142 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,142 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 13:59:46,143 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,143 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 13:59:46,143 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,144 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 13:59:46,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,144 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 13:59:46,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,179 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 13:59:46,179 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 13:59:46,179 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 13:59:46,179 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 13:59:46,206 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 13:59:46,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:59:46,217 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 13:59:46,230 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_node_reset_harness-1.i[4500,4513] [2024-11-05 13:59:46,231 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_node_reset_harness-1.i[4560,4573] [2024-11-05 13:59:46,263 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,264 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,264 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,265 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,265 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,269 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,269 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,271 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,271 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:59:46,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:59:46,429 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 13:59:46,437 INFO L204 MainTranslator]: Completed translation [2024-11-05 13:59:46,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46 WrapperNode [2024-11-05 13:59:46,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 13:59:46,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 13:59:46,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 13:59:46,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 13:59:46,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,535 INFO L138 Inliner]: procedures = 687, calls = 1032, calls flagged for inlining = 48, calls inlined = 3, statements flattened = 28 [2024-11-05 13:59:46,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 13:59:46,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 13:59:46,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 13:59:46,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 13:59:46,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,564 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-11-05 13:59:46,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 13:59:46,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 13:59:46,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 13:59:46,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 13:59:46,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (1/1) ... [2024-11-05 13:59:46,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 13:59:46,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 13:59:46,641 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 13:59:46,648 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 13:59:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_reset [2024-11-05 13:59:46,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_reset [2024-11-05 13:59:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-05 13:59:46,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-05 13:59:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 13:59:46,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 13:59:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 13:59:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-05 13:59:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-05 13:59:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-05 13:59:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-05 13:59:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 13:59:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 13:59:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 13:59:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 13:59:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 13:59:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 13:59:46,887 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 13:59:46,889 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 13:59:47,122 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-05 13:59:47,122 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 13:59:47,135 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 13:59:47,136 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-05 13:59:47,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:59:47 BoogieIcfgContainer [2024-11-05 13:59:47,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 13:59:47,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 13:59:47,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 13:59:47,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 13:59:47,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:59:44" (1/3) ... [2024-11-05 13:59:47,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c8dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:59:47, skipping insertion in model container [2024-11-05 13:59:47,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:59:46" (2/3) ... [2024-11-05 13:59:47,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c8dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:59:47, skipping insertion in model container [2024-11-05 13:59:47,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:59:47" (3/3) ... [2024-11-05 13:59:47,142 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_node_reset_harness-1.i [2024-11-05 13:59:47,153 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 13:59:47,153 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 13:59:47,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 13:59:47,241 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;@5cfb0718, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 13:59:47,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 13:59:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-05 13:59:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-05 13:59:47,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:47,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:59:47,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:47,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash 896723244, now seen corresponding path program 1 times [2024-11-05 13:59:47,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:47,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682656231] [2024-11-05 13:59:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:47,299 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:47,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:47,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:47,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-05 13:59:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:47,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 13:59:47,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:47,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:47,433 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682656231] [2024-11-05 13:59:47,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [682656231] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:59:47,433 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:59:47,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 13:59:47,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440424141] [2024-11-05 13:59:47,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:59:47,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 13:59:47,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:47,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 13:59:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 13:59:47,455 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-05 13:59:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:47,468 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2024-11-05 13:59:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 13:59:47,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-05 13:59:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:47,474 INFO L225 Difference]: With dead ends: 75 [2024-11-05 13:59:47,474 INFO L226 Difference]: Without dead ends: 36 [2024-11-05 13:59:47,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 13:59:47,478 INFO L432 NwaCegarLoop]: 45 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, 45 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 13:59:47,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:59:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-05 13:59:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-05 13:59:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-05 13:59:47,510 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 20 [2024-11-05 13:59:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:47,511 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-05 13:59:47,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-05 13:59:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-05 13:59:47,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-05 13:59:47,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:47,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 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 13:59:47,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-05 13:59:47,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:47,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:47,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2088176269, now seen corresponding path program 1 times [2024-11-05 13:59:47,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:47,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322808482] [2024-11-05 13:59:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:47,715 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:47,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:47,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:47,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-05 13:59:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:47,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 13:59:47,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:47,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:47,903 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322808482] [2024-11-05 13:59:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1322808482] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:59:47,903 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:59:47,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 13:59:47,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825372879] [2024-11-05 13:59:47,903 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:59:47,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 13:59:47,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 13:59:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:59:47,907 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:47,950 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2024-11-05 13:59:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 13:59:47,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2024-11-05 13:59:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:47,956 INFO L225 Difference]: With dead ends: 64 [2024-11-05 13:59:47,956 INFO L226 Difference]: Without dead ends: 38 [2024-11-05 13:59:47,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:59:47,960 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:47,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:59:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-05 13:59:47,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-05 13:59:47,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-11-05 13:59:47,969 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 26 [2024-11-05 13:59:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:47,969 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-11-05 13:59:47,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-11-05 13:59:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-05 13:59:47,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:47,970 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 13:59:47,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-05 13:59:48,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:48,178 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:48,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash 563665907, now seen corresponding path program 1 times [2024-11-05 13:59:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:48,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457424675] [2024-11-05 13:59:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:48,179 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:48,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:48,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:48,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-05 13:59:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:48,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 13:59:48,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:48,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:48,459 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:48,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457424675] [2024-11-05 13:59:48,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [457424675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 13:59:48,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 13:59:48,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-05 13:59:48,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587666870] [2024-11-05 13:59:48,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 13:59:48,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 13:59:48,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 13:59:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-05 13:59:48,462 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:48,573 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2024-11-05 13:59:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-05 13:59:48,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-11-05 13:59:48,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:48,574 INFO L225 Difference]: With dead ends: 68 [2024-11-05 13:59:48,574 INFO L226 Difference]: Without dead ends: 42 [2024-11-05 13:59:48,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-05 13:59:48,576 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:48,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 13:59:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-05 13:59:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-05 13:59:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2024-11-05 13:59:48,580 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 28 [2024-11-05 13:59:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:48,580 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-11-05 13:59:48,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2024-11-05 13:59:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-05 13:59:48,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:48,581 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 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 13:59:48,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-05 13:59:48,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:48,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:48,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:48,787 INFO L85 PathProgramCache]: Analyzing trace with hash 704760051, now seen corresponding path program 2 times [2024-11-05 13:59:48,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:48,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656305267] [2024-11-05 13:59:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:48,787 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:48,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:48,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:48,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-05 13:59:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:48,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 13:59:48,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:48,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:49,420 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:49,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656305267] [2024-11-05 13:59:49,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1656305267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 13:59:49,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 13:59:49,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-05 13:59:49,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941917823] [2024-11-05 13:59:49,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 13:59:49,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-05 13:59:49,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:49,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-05 13:59:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-05 13:59:49,423 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:49,835 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2024-11-05 13:59:49,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-05 13:59:49,836 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2024-11-05 13:59:49,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:49,839 INFO L225 Difference]: With dead ends: 76 [2024-11-05 13:59:49,839 INFO L226 Difference]: Without dead ends: 50 [2024-11-05 13:59:49,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=347, Unknown=0, NotChecked=0, Total=552 [2024-11-05 13:59:49,841 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:49,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 13:59:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-05 13:59:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-05 13:59:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:49,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-11-05 13:59:49,853 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 32 [2024-11-05 13:59:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:49,853 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-11-05 13:59:49,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2024-11-05 13:59:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-05 13:59:49,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:49,858 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 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 13:59:49,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-05 13:59:50,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:50,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:50,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1163404019, now seen corresponding path program 3 times [2024-11-05 13:59:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:50,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253461139] [2024-11-05 13:59:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:50,060 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:50,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:50,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:50,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-05 13:59:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:50,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-05 13:59:50,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:50,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:50,891 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253461139] [2024-11-05 13:59:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1253461139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 13:59:50,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 13:59:50,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2024-11-05 13:59:50,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082283655] [2024-11-05 13:59:50,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 13:59:50,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-05 13:59:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:50,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-05 13:59:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-11-05 13:59:50,893 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 34 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 34 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:51,353 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2024-11-05 13:59:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-05 13:59:51,353 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 34 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2024-11-05 13:59:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:51,354 INFO L225 Difference]: With dead ends: 75 [2024-11-05 13:59:51,354 INFO L226 Difference]: Without dead ends: 51 [2024-11-05 13:59:51,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-11-05 13:59:51,355 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:51,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 666 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-05 13:59:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-05 13:59:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-05 13:59:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 38 states have (on average 1.105263157894737) internal successors, (42), 39 states have internal predecessors, (42), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-11-05 13:59:51,366 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 40 [2024-11-05 13:59:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:51,366 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-11-05 13:59:51,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 34 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 13:59:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-11-05 13:59:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-05 13:59:51,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:51,369 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 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 13:59:51,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-05 13:59:51,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:51,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:51,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:51,572 INFO L85 PathProgramCache]: Analyzing trace with hash -795871449, now seen corresponding path program 4 times [2024-11-05 13:59:51,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:51,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043371749] [2024-11-05 13:59:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:51,572 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:51,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:51,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:51,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-05 13:59:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:51,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 13:59:51,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:51,670 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-05 13:59:51,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-05 13:59:51,704 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:51,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043371749] [2024-11-05 13:59:51,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1043371749] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:59:51,705 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:59:51,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 13:59:51,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184172751] [2024-11-05 13:59:51,705 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:59:51,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 13:59:51,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:51,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 13:59:51,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:59:51,706 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 13:59:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:51,744 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2024-11-05 13:59:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 13:59:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2024-11-05 13:59:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:51,746 INFO L225 Difference]: With dead ends: 84 [2024-11-05 13:59:51,746 INFO L226 Difference]: Without dead ends: 59 [2024-11-05 13:59:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:59:51,747 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 12 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:51,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 106 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:59:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-05 13:59:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2024-11-05 13:59:51,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 13:59:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-11-05 13:59:51,754 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 41 [2024-11-05 13:59:51,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:51,754 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-11-05 13:59:51,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 13:59:51,754 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-11-05 13:59:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-05 13:59:51,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:51,755 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 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 13:59:51,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-05 13:59:51,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:51,957 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:51,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 772190750, now seen corresponding path program 1 times [2024-11-05 13:59:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258047941] [2024-11-05 13:59:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:51,958 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:51,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:51,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-05 13:59:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:52,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-05 13:59:52,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:52,111 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 12 treesize of output 8 [2024-11-05 13:59:52,131 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 23 treesize of output 22 [2024-11-05 13:59:52,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2024-11-05 13:59:52,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 48 [2024-11-05 13:59:52,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2024-11-05 13:59:52,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 74 [2024-11-05 13:59:52,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 87 [2024-11-05 13:59:52,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 83 treesize of output 100 [2024-11-05 13:59:52,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 93 treesize of output 113 [2024-11-05 13:59:52,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:52,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 103 treesize of output 126 [2024-11-05 13:59:53,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:53,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 113 treesize of output 139 [2024-11-05 13:59:53,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:53,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 123 treesize of output 152 [2024-11-05 13:59:53,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:53,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 165 [2024-11-05 13:59:53,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:53,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 143 treesize of output 178 [2024-11-05 13:59:53,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:59:53,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 153 treesize of output 191 [2024-11-05 13:59:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 13:59:55,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 14:01:16,783 WARN L286 SmtUtils]: Spent 1.34m on a formula simplification. DAG size of input: 174 DAG size of output: 172 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)