/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_front_harness_negated.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 13:58:25,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 13:58:25,957 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 13:58:25,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 13:58:25,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 13:58:25,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 13:58:25,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 13:58:25,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 13:58:25,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 13:58:25,982 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 13:58:25,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 13:58:25,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 13:58:25,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 13:58:25,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 13:58:25,983 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 13:58:25,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 13:58:25,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 13:58:25,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 13:58:25,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 13:58:25,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 13:58:25,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 13:58:25,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 13:58:25,990 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 13:58:25,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 13:58:25,990 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 13:58:25,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 13:58:25,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 13:58:25,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 13:58:25,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 13:58:25,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 13:58:25,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 13:58:25,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 13:58:25,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 13:58:25,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 13:58:25,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 13:58:25,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 13:58:25,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-05 13:58:26,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 13:58:26,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 13:58:26,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 13:58:26,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 13:58:26,222 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 13:58:26,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_front_harness_negated.i [2024-11-05 13:58:27,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 13:58:27,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 13:58:27,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_front_harness_negated.i [2024-11-05 13:58:27,974 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010db3564/14447c77036c47a78e8881ec36649b88/FLAG29119880c [2024-11-05 13:58:27,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010db3564/14447c77036c47a78e8881ec36649b88 [2024-11-05 13:58:27,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 13:58:27,990 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 13:58:27,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 13:58:27,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 13:58:27,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 13:58:27,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:58:27" (1/1) ... [2024-11-05 13:58:27,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5c9af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:27, skipping insertion in model container [2024-11-05 13:58:27,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:58:27" (1/1) ... [2024-11-05 13:58:28,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 13:58:28,364 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_front_harness_negated.i[4495,4508] [2024-11-05 13:58:28,372 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_front_harness_negated.i[4555,4568] [2024-11-05 13:58:29,090 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 13:58:29,182 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 13:58:29,183 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 13:58:29,183 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 13:58:29,192 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 13:58:29,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,195 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,195 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 13:58:29,195 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,196 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,200 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 13:58:29,201 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 13:58:29,207 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 13:58:29,208 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 13:58:29,216 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,216 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 13:58:29,217 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,217 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 13:58:29,218 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,219 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 13:58:29,219 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,220 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 13:58:29,221 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,223 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 13:58:29,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,224 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 13:58:29,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,508 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 13:58:29,508 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 13:58:29,509 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 13:58:29,509 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 13:58:29,647 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 13:58:29,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:58:29,698 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 13:58:29,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 13:58:29,737 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_front_harness_negated.i[4495,4508] [2024-11-05 13:58:29,738 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_front_harness_negated.i[4555,4568] [2024-11-05 13:58:29,767 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 13:58:29,783 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 13:58:29,783 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 13:58:29,784 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 13:58:29,790 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 13:58:29,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,794 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 13:58:29,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,798 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 13:58:29,798 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 13:58:29,799 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 13:58:29,800 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 13:58:29,805 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,806 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 13:58:29,810 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,811 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 13:58:29,812 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,812 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 13:58:29,812 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,812 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 13:58:29,814 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,816 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 13:58:29,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,817 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 13:58:29,818 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,818 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,864 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 13:58:29,865 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 13:58:29,865 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 13:58:29,865 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 13:58:29,909 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 13:58:29,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:58:29,925 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 13:58:29,941 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_front_harness_negated.i[4495,4508] [2024-11-05 13:58:29,944 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_front_harness_negated.i[4555,4568] [2024-11-05 13:58:29,990 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:29,992 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,000 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,001 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,003 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,003 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,004 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,005 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,005 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,005 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 13:58:30,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 13:58:30,274 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 13:58:30,283 INFO L204 MainTranslator]: Completed translation [2024-11-05 13:58:30,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30 WrapperNode [2024-11-05 13:58:30,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 13:58:30,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 13:58:30,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 13:58:30,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 13:58:30,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,396 INFO L138 Inliner]: procedures = 687, calls = 1043, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 136 [2024-11-05 13:58:30,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 13:58:30,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 13:58:30,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 13:58:30,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 13:58:30,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,452 INFO L175 MemorySlicer]: Split 27 memory accesses to 3 slices as follows [2, 20, 5]. 74 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 6 writes are split as follows [0, 6, 0]. [2024-11-05 13:58:30,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 13:58:30,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 13:58:30,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 13:58:30,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 13:58:30,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (1/1) ... [2024-11-05 13:58:30,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 13:58:30,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 13:58:30,543 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 13:58:30,549 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 13:58:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 13:58:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 13:58:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 13:58:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 13:58:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 13:58:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 13:58:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-05 13:58:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-05 13:58:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-05 13:58:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-05 13:58:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-05 13:58:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 13:58:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_front [2024-11-05 13:58:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_front [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 13:58:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-05 13:58:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-05 13:58:30,576 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 13:58:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 13:58:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 13:58:30,578 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-05 13:58:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-05 13:58:30,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-05 13:58:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-05 13:58:30,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 13:58:30,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 13:58:31,297 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-05 13:58:31,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 13:58:31,312 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 13:58:31,312 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-05 13:58:31,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:58:31 BoogieIcfgContainer [2024-11-05 13:58:31,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 13:58:31,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 13:58:31,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 13:58:31,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 13:58:31,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:58:27" (1/3) ... [2024-11-05 13:58:31,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608bf2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:58:31, skipping insertion in model container [2024-11-05 13:58:31,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:58:30" (2/3) ... [2024-11-05 13:58:31,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608bf2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:58:31, skipping insertion in model container [2024-11-05 13:58:31,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:58:31" (3/3) ... [2024-11-05 13:58:31,321 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_front_harness_negated.i [2024-11-05 13:58:31,336 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 13:58:31,336 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 13:58:31,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 13:58:31,396 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;@31276806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 13:58:31,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 13:58:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 13:58:31,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-05 13:58:31,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:31,410 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:31,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:31,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1606468667, now seen corresponding path program 1 times [2024-11-05 13:58:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:31,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118642434] [2024-11-05 13:58:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:31,425 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:31,428 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 13:58:31,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-05 13:58:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:31,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 13:58:31,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:31,678 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-05 13:58:31,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-05 13:58:31,775 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118642434] [2024-11-05 13:58:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [118642434] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:58:31,776 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:58:31,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 13:58:31,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140494971] [2024-11-05 13:58:31,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:31,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 13:58:31,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:31,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 13:58:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 13:58:31,808 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 13:58:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:31,845 INFO L93 Difference]: Finished difference Result 188 states and 271 transitions. [2024-11-05 13:58:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 13:58:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-11-05 13:58:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:31,856 INFO L225 Difference]: With dead ends: 188 [2024-11-05 13:58:31,856 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 13:58:31,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 13:58:31,864 INFO L432 NwaCegarLoop]: 127 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, 127 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 13:58:31,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:58:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 13:58:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-05 13:58:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-05 13:58:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 122 transitions. [2024-11-05 13:58:31,908 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 122 transitions. Word has length 84 [2024-11-05 13:58:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:31,908 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 122 transitions. [2024-11-05 13:58:31,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 13:58:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2024-11-05 13:58:31,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-05 13:58:31,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:31,913 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:31,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:32,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:32,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:32,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1607570691, now seen corresponding path program 1 times [2024-11-05 13:58:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:32,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25582386] [2024-11-05 13:58:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:32,117 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 13:58:32,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-05 13:58:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:32,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 13:58:32,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-05 13:58:32,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-05 13:58:32,451 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25582386] [2024-11-05 13:58:32,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [25582386] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 13:58:32,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 13:58:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-11-05 13:58:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379498546] [2024-11-05 13:58:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:32,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 13:58:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 13:58:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-05 13:58:32,455 INFO L87 Difference]: Start difference. First operand 93 states and 122 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:32,539 INFO L93 Difference]: Finished difference Result 169 states and 224 transitions. [2024-11-05 13:58:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 13:58:32,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2024-11-05 13:58:32,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:32,547 INFO L225 Difference]: With dead ends: 169 [2024-11-05 13:58:32,547 INFO L226 Difference]: Without dead ends: 95 [2024-11-05 13:58:32,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-05 13:58:32,552 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:32,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 564 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 13:58:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-05 13:58:32,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-05 13:58:32,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 63 states have internal predecessors, (76), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-11-05 13:58:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 125 transitions. [2024-11-05 13:58:32,568 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 125 transitions. Word has length 84 [2024-11-05 13:58:32,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:32,568 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 125 transitions. [2024-11-05 13:58:32,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2024-11-05 13:58:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-05 13:58:32,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:32,571 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:32,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:32,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:32,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:32,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:32,773 INFO L85 PathProgramCache]: Analyzing trace with hash -254868999, now seen corresponding path program 1 times [2024-11-05 13:58:32,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:32,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287542156] [2024-11-05 13:58:32,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:32,773 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:32,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:32,775 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 13:58:32,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-05 13:58:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:32,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-05 13:58:32,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-05 13:58:32,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-05 13:58:33,093 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:33,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287542156] [2024-11-05 13:58:33,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1287542156] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 13:58:33,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 13:58:33,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-05 13:58:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703783229] [2024-11-05 13:58:33,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:33,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-05 13:58:33,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:33,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-05 13:58:33,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-05 13:58:33,095 INFO L87 Difference]: Start difference. First operand 95 states and 125 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:33,173 INFO L93 Difference]: Finished difference Result 174 states and 231 transitions. [2024-11-05 13:58:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-05 13:58:33,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2024-11-05 13:58:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:33,175 INFO L225 Difference]: With dead ends: 174 [2024-11-05 13:58:33,175 INFO L226 Difference]: Without dead ends: 98 [2024-11-05 13:58:33,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-05 13:58:33,177 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:33,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 13:58:33,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-05 13:58:33,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2024-11-05 13:58:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 64 states have internal predecessors, (77), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-11-05 13:58:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2024-11-05 13:58:33,189 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 86 [2024-11-05 13:58:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:33,189 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2024-11-05 13:58:33,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2024-11-05 13:58:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-05 13:58:33,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:33,191 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:33,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:33,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:33,396 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:33,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:33,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2045206106, now seen corresponding path program 1 times [2024-11-05 13:58:33,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:33,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26831437] [2024-11-05 13:58:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:33,397 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:33,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:33,399 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 13:58:33,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-05 13:58:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:33,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-05 13:58:33,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-05 13:58:33,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-05 13:58:33,760 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:33,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26831437] [2024-11-05 13:58:33,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [26831437] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 13:58:33,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 13:58:33,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2024-11-05 13:58:33,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453874459] [2024-11-05 13:58:33,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:33,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 13:58:33,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:33,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 13:58:33,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-05 13:58:33,762 INFO L87 Difference]: Start difference. First operand 96 states and 126 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:33,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:33,875 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2024-11-05 13:58:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 13:58:33,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 88 [2024-11-05 13:58:33,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:33,881 INFO L225 Difference]: With dead ends: 178 [2024-11-05 13:58:33,881 INFO L226 Difference]: Without dead ends: 101 [2024-11-05 13:58:33,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-05 13:58:33,887 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 4 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:33,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 771 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 13:58:33,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-05 13:58:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2024-11-05 13:58:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 65 states have internal predecessors, (78), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-11-05 13:58:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 127 transitions. [2024-11-05 13:58:33,905 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 127 transitions. Word has length 88 [2024-11-05 13:58:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:33,906 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 127 transitions. [2024-11-05 13:58:33,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-05 13:58:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 127 transitions. [2024-11-05 13:58:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-05 13:58:33,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:33,911 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:33,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:34,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:34,112 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:34,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash -708361508, now seen corresponding path program 1 times [2024-11-05 13:58:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150238653] [2024-11-05 13:58:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:34,113 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:34,114 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 13:58:34,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-05 13:58:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:34,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 13:58:34,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-05 13:58:34,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-05 13:58:34,387 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:34,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150238653] [2024-11-05 13:58:34,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1150238653] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 13:58:34,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 13:58:34,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 6 [2024-11-05 13:58:34,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336931372] [2024-11-05 13:58:34,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:34,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 13:58:34,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:34,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 13:58:34,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:58:34,391 INFO L87 Difference]: Start difference. First operand 97 states and 127 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 13:58:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:34,503 INFO L93 Difference]: Finished difference Result 183 states and 246 transitions. [2024-11-05 13:58:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 13:58:34,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2024-11-05 13:58:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:34,507 INFO L225 Difference]: With dead ends: 183 [2024-11-05 13:58:34,507 INFO L226 Difference]: Without dead ends: 105 [2024-11-05 13:58:34,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 13:58:34,509 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 16 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:34,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 410 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 13:58:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-05 13:58:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2024-11-05 13:58:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 67 states have internal predecessors, (81), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-11-05 13:58:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 130 transitions. [2024-11-05 13:58:34,523 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 130 transitions. Word has length 89 [2024-11-05 13:58:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:34,523 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 130 transitions. [2024-11-05 13:58:34,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 13:58:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 130 transitions. [2024-11-05 13:58:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-05 13:58:34,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:34,527 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:34,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-05 13:58:34,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:34,728 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:34,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1707514615, now seen corresponding path program 1 times [2024-11-05 13:58:34,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560195766] [2024-11-05 13:58:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:34,729 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:34,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:34,731 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 13:58:34,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-05 13:58:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:34,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 13:58:34,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-05 13:58:34,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-05 13:58:35,003 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:35,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560195766] [2024-11-05 13:58:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1560195766] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:58:35,003 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:58:35,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-05 13:58:35,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257935221] [2024-11-05 13:58:35,003 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:35,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 13:58:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 13:58:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-05 13:58:35,007 INFO L87 Difference]: Start difference. First operand 99 states and 130 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:35,065 INFO L93 Difference]: Finished difference Result 109 states and 141 transitions. [2024-11-05 13:58:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 13:58:35,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-05 13:58:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:35,067 INFO L225 Difference]: With dead ends: 109 [2024-11-05 13:58:35,067 INFO L226 Difference]: Without dead ends: 107 [2024-11-05 13:58:35,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-05 13:58:35,071 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 3 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:35,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 699 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:58:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-05 13:58:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-11-05 13:58:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 72 states have internal predecessors, (85), 25 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-05 13:58:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2024-11-05 13:58:35,089 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 100 [2024-11-05 13:58:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:35,090 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2024-11-05 13:58:35,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2024-11-05 13:58:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-05 13:58:35,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:35,092 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:35,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:35,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:35,294 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:35,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash -158412749, now seen corresponding path program 1 times [2024-11-05 13:58:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192160544] [2024-11-05 13:58:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:35,295 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:35,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:35,296 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 13:58:35,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-05 13:58:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:35,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-05 13:58:35,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-05 13:58:35,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-05 13:58:35,572 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192160544] [2024-11-05 13:58:35,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1192160544] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:58:35,573 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:58:35,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2024-11-05 13:58:35,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447164188] [2024-11-05 13:58:35,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:35,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-05 13:58:35,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:35,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-05 13:58:35,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-05 13:58:35,574 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:35,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:35,619 INFO L93 Difference]: Finished difference Result 117 states and 150 transitions. [2024-11-05 13:58:35,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-05 13:58:35,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-11-05 13:58:35,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:35,621 INFO L225 Difference]: With dead ends: 117 [2024-11-05 13:58:35,621 INFO L226 Difference]: Without dead ends: 115 [2024-11-05 13:58:35,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-05 13:58:35,622 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 6 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:35,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 696 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:58:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-05 13:58:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2024-11-05 13:58:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 73 states have internal predecessors, (86), 25 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-05 13:58:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 139 transitions. [2024-11-05 13:58:35,637 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 139 transitions. Word has length 102 [2024-11-05 13:58:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:35,637 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 139 transitions. [2024-11-05 13:58:35,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 139 transitions. [2024-11-05 13:58:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-05 13:58:35,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:35,639 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:35,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-05 13:58:35,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:35,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:35,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1930017376, now seen corresponding path program 1 times [2024-11-05 13:58:35,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:35,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15233738] [2024-11-05 13:58:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:35,844 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:35,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:35,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:58:35,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-05 13:58:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:35,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-05 13:58:35,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-05 13:58:36,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-05 13:58:36,157 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:36,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15233738] [2024-11-05 13:58:36,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [15233738] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 13:58:36,157 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 13:58:36,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2024-11-05 13:58:36,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376937497] [2024-11-05 13:58:36,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:36,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 13:58:36,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:36,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 13:58:36,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-05 13:58:36,159 INFO L87 Difference]: Start difference. First operand 107 states and 139 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:36,229 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2024-11-05 13:58:36,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 13:58:36,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-05 13:58:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:36,231 INFO L225 Difference]: With dead ends: 116 [2024-11-05 13:58:36,231 INFO L226 Difference]: Without dead ends: 114 [2024-11-05 13:58:36,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-05 13:58:36,232 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 10 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:36,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 799 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 13:58:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-05 13:58:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2024-11-05 13:58:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 70 states have internal predecessors, (84), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-05 13:58:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2024-11-05 13:58:36,251 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 104 [2024-11-05 13:58:36,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:36,255 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2024-11-05 13:58:36,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-05 13:58:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2024-11-05 13:58:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-05 13:58:36,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:36,257 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:36,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-05 13:58:36,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:36,458 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:36,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1691427697, now seen corresponding path program 1 times [2024-11-05 13:58:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:36,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689327905] [2024-11-05 13:58:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:36,459 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:36,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:36,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:58:36,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-05 13:58:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:36,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-05 13:58:36,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:36,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:58:36,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:58:36,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 13:58:36,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 13:58:36,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 13:58:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-05 13:58:38,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:58:39,219 WARN L873 $PredicateComparison]: unable to prove that (or (not (= (select (select |c_#memory_$Pointer$#1.offset| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base|) |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset|) (bvadd |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| (_ bv16 64)))) (not (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base|) |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset|))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_75| (_ BitVec 64))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.offset| |c_aws_linked_list_is_valid_#in~list#1.base|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_75|))) (and (= |c_aws_linked_list_is_valid_#in~list#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_aws_linked_list_is_valid_#in~list#1.base|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_75|)) (= .cse0 (bvadd (_ bv16 64) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_75|)) (= .cse0 (bvadd (_ bv16 64) |c_aws_linked_list_is_valid_#in~list#1.offset|)))))) is different from true [2024-11-05 13:58:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 30 refuted. 6 times theorem prover too weak. 56 trivial. 2 not checked. [2024-11-05 13:58:53,183 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:58:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689327905] [2024-11-05 13:58:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [689327905] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 13:58:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 13:58:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2024-11-05 13:58:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541941932] [2024-11-05 13:58:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 13:58:53,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-05 13:58:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:58:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-05 13:58:53,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=440, Unknown=8, NotChecked=42, Total=552 [2024-11-05 13:58:53,185 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-05 13:58:54,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:58:54,038 INFO L93 Difference]: Finished difference Result 207 states and 267 transitions. [2024-11-05 13:58:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-05 13:58:54,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 116 [2024-11-05 13:58:54,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:58:54,041 INFO L225 Difference]: With dead ends: 207 [2024-11-05 13:58:54,041 INFO L226 Difference]: Without dead ends: 105 [2024-11-05 13:58:54,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=62, Invalid=440, Unknown=8, NotChecked=42, Total=552 [2024-11-05 13:58:54,042 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 4 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 13:58:54,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 545 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 13:58:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-05 13:58:54,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-05 13:58:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 71 states have internal predecessors, (85), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-05 13:58:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 136 transitions. [2024-11-05 13:58:54,054 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 136 transitions. Word has length 116 [2024-11-05 13:58:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:58:54,054 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 136 transitions. [2024-11-05 13:58:54,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-05 13:58:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 136 transitions. [2024-11-05 13:58:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-05 13:58:54,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:58:54,058 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:58:54,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Forceful destruction successful, exit code 0 [2024-11-05 13:58:54,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:54,258 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:58:54,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:58:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash 648180367, now seen corresponding path program 1 times [2024-11-05 13:58:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:58:54,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552466463] [2024-11-05 13:58:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:58:54,259 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:58:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:58:54,260 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:58:54,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-05 13:58:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:58:54,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-05 13:58:54,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:58:54,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:58:54,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:58:54,594 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 13:58:54,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 13:58:54,651 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 13:58:54,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 13:58:54,962 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 13:58:54,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 93 [2024-11-05 13:58:55,011 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 13:58:55,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 13:59:07,748 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-05 13:59:07,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 13:59:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-05 13:59:09,805 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 13:59:09,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552466463] [2024-11-05 13:59:09,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [552466463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 13:59:09,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 13:59:09,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15] total 34 [2024-11-05 13:59:09,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367010945] [2024-11-05 13:59:09,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 13:59:09,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-05 13:59:09,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 13:59:09,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-05 13:59:09,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-05 13:59:09,808 INFO L87 Difference]: Start difference. First operand 105 states and 136 transitions. Second operand has 34 states, 30 states have (on average 4.766666666666667) internal successors, (143), 30 states have internal predecessors, (143), 14 states have call successors, (29), 6 states have call predecessors, (29), 10 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-05 13:59:24,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 13:59:24,306 INFO L93 Difference]: Finished difference Result 326 states and 430 transitions. [2024-11-05 13:59:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-05 13:59:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 4.766666666666667) internal successors, (143), 30 states have internal predecessors, (143), 14 states have call successors, (29), 6 states have call predecessors, (29), 10 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) Word has length 118 [2024-11-05 13:59:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 13:59:24,310 INFO L225 Difference]: With dead ends: 326 [2024-11-05 13:59:24,310 INFO L226 Difference]: Without dead ends: 233 [2024-11-05 13:59:24,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2024-11-05 13:59:24,312 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 204 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-05 13:59:24,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1268 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-05 13:59:24,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-05 13:59:24,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 215. [2024-11-05 13:59:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 142 states have (on average 1.2535211267605635) internal successors, (178), 146 states have internal predecessors, (178), 51 states have call successors, (51), 19 states have call predecessors, (51), 21 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2024-11-05 13:59:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 282 transitions. [2024-11-05 13:59:24,374 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 282 transitions. Word has length 118 [2024-11-05 13:59:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 13:59:24,375 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 282 transitions. [2024-11-05 13:59:24,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 4.766666666666667) internal successors, (143), 30 states have internal predecessors, (143), 14 states have call successors, (29), 6 states have call predecessors, (29), 10 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-05 13:59:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 282 transitions. [2024-11-05 13:59:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-05 13:59:24,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 13:59:24,377 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 13:59:24,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Ended with exit code 0 [2024-11-05 13:59:24,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:24,582 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 13:59:24,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 13:59:24,582 INFO L85 PathProgramCache]: Analyzing trace with hash -416392685, now seen corresponding path program 1 times [2024-11-05 13:59:24,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 13:59:24,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431630286] [2024-11-05 13:59:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 13:59:24,583 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 13:59:24,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 13:59:24,584 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 13:59:24,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Waiting until timeout for monitored process [2024-11-05 13:59:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 13:59:24,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-05 13:59:24,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 13:59:24,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:59:24,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 13:59:24,852 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 13:59:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 13:59:24,905 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 13:59:24,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 13:59:25,256 INFO L349 Elim1Store]: treesize reduction 36, result has 53.8 percent of original size [2024-11-05 13:59:25,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 113 [2024-11-05 13:59:25,317 INFO L349 Elim1Store]: treesize reduction 80, result has 24.5 percent of original size [2024-11-05 13:59:25,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 63 [2024-11-05 13:59:25,889 INFO L349 Elim1Store]: treesize reduction 64, result has 37.9 percent of original size [2024-11-05 13:59:25,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 188 treesize of output 141 [2024-11-05 13:59:25,995 INFO L349 Elim1Store]: treesize reduction 112, result has 29.6 percent of original size [2024-11-05 13:59:25,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 106 treesize of output 123