/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 02:28:07,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 02:28:07,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 02:28:07,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 02:28:07,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 02:28:07,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 02:28:07,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 02:28:07,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 02:28:07,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 02:28:07,448 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 02:28:07,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 02:28:07,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 02:28:07,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 02:28:07,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 02:28:07,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 02:28:07,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 02:28:07,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 02:28:07,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 02:28:07,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 02:28:07,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 02:28:07,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 02:28:07,457 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 02:28:07,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 02:28:07,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:28:07,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 02:28:07,459 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 02:28:07,460 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 02:28:07,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 02:28:07,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 02:28:07,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 02:28:07,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 02:28:07,461 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:07,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 02:28:07,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 02:28:07,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 02:28:07,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 02:28:07,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 02:28:07,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.i [2024-11-05 02:28:09,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 02:28:09,339 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 02:28:09,339 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.i [2024-11-05 02:28:09,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa3e82c8a/935edbcfa5b14d8ba43f35bc30770619/FLAGd5aa80306 [2024-11-05 02:28:09,573 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa3e82c8a/935edbcfa5b14d8ba43f35bc30770619 [2024-11-05 02:28:09,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 02:28:09,581 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 02:28:09,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 02:28:09,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 02:28:09,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 02:28:09,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:28:09" (1/1) ... [2024-11-05 02:28:09,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2891f88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:09, skipping insertion in model container [2024-11-05 02:28:09,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:28:09" (1/1) ... [2024-11-05 02:28:09,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:28:09,913 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_init_harness_negated.i[4494,4507] [2024-11-05 02:28:09,923 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_init_harness_negated.i[4554,4567] [2024-11-05 02:28:10,861 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:10,983 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:10,983 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:10,984 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:10,998 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,003 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,004 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,004 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,004 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,005 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,009 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,012 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,012 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,014 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,014 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,019 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,020 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,020 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,020 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,021 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,021 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,022 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,022 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,023 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,024 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,024 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,024 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,024 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,025 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,451 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,451 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,452 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,453 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,556 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:11,596 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 02:28:11,619 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:28:11,623 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_init_harness_negated.i[4494,4507] [2024-11-05 02:28:11,623 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_init_harness_negated.i[4554,4567] [2024-11-05 02:28:11,649 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,665 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,665 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,667 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,672 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,675 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,675 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,675 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,679 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,679 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,680 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,680 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,683 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,683 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,684 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,685 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,685 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,686 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,687 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,687 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,687 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,687 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,729 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,730 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,734 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,734 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,760 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:28:11,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:11,778 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 02:28:11,793 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_init_harness_negated.i[4494,4507] [2024-11-05 02:28:11,793 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_init_harness_negated.i[4554,4567] [2024-11-05 02:28:11,839 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,840 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,848 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,848 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,850 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,853 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,853 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:28:11,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:28:12,056 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 02:28:12,067 INFO L204 MainTranslator]: Completed translation [2024-11-05 02:28:12,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12 WrapperNode [2024-11-05 02:28:12,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 02:28:12,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 02:28:12,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 02:28:12,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 02:28:12,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,166 INFO L138 Inliner]: procedures = 687, calls = 1034, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 93 [2024-11-05 02:28:12,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 02:28:12,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 02:28:12,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 02:28:12,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 02:28:12,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,205 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 5, 13]. 65 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 4 writes are split as follows [0, 0, 4]. [2024-11-05 02:28:12,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 02:28:12,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 02:28:12,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 02:28:12,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 02:28:12,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (1/1) ... [2024-11-05 02:28:12,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:28:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 02:28:12,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-05 02:28:12,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2024-11-05 02:28:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 02:28:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 02:28:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:28:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-05 02:28:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 02:28:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-05 02:28:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 02:28:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 02:28:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 02:28:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 02:28:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 02:28:12,510 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 02:28:12,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 02:28:12,792 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-05 02:28:12,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 02:28:12,805 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 02:28:12,805 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 02:28:12,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:28:12 BoogieIcfgContainer [2024-11-05 02:28:12,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 02:28:12,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 02:28:12,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 02:28:12,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 02:28:12,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 02:28:09" (1/3) ... [2024-11-05 02:28:12,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40530de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:28:12, skipping insertion in model container [2024-11-05 02:28:12,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:28:12" (2/3) ... [2024-11-05 02:28:12,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40530de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:28:12, skipping insertion in model container [2024-11-05 02:28:12,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:28:12" (3/3) ... [2024-11-05 02:28:12,815 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_init_harness_negated.i [2024-11-05 02:28:12,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 02:28:12,828 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 02:28:12,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 02:28:12,885 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;@8c984be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 02:28:12,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 02:28:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-05 02:28:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-05 02:28:12,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:12,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:12,898 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:12,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:12,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1017333715, now seen corresponding path program 1 times [2024-11-05 02:28:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:12,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973570076] [2024-11-05 02:28:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:12,909 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:12,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:12,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:12,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-05 02:28:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:13,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 02:28:13,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:13,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:13,109 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973570076] [2024-11-05 02:28:13,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1973570076] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:13,109 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 02:28:13,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355054963] [2024-11-05 02:28:13,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:13,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 02:28:13,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:13,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 02:28:13,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:28:13,140 INFO L87 Difference]: Start difference. First operand has 61 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-05 02:28:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:13,164 INFO L93 Difference]: Finished difference Result 117 states and 158 transitions. [2024-11-05 02:28:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 02:28:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-11-05 02:28:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:13,174 INFO L225 Difference]: With dead ends: 117 [2024-11-05 02:28:13,174 INFO L226 Difference]: Without dead ends: 56 [2024-11-05 02:28:13,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:28:13,183 INFO L432 NwaCegarLoop]: 75 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, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:13,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:28:13,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-05 02:28:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-05 02:28:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-05 02:28:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2024-11-05 02:28:13,224 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 26 [2024-11-05 02:28:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:13,224 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2024-11-05 02:28:13,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-05 02:28:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2024-11-05 02:28:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-05 02:28:13,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:13,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:13,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:13,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:13,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:13,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1834982165, now seen corresponding path program 1 times [2024-11-05 02:28:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212636263] [2024-11-05 02:28:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:13,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:13,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:13,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:13,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-05 02:28:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:13,554 WARN L253 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-05 02:28:13,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:13,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:13,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:13,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:14,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:15,007 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212636263] [2024-11-05 02:28:15,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [212636263] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:15,007 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:15,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 6] imperfect sequences [] total 15 [2024-11-05 02:28:15,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48718054] [2024-11-05 02:28:15,008 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:15,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-05 02:28:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:15,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-05 02:28:15,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-05 02:28:15,010 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 15 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:15,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:15,849 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2024-11-05 02:28:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-05 02:28:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 26 [2024-11-05 02:28:15,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:15,852 INFO L225 Difference]: With dead ends: 70 [2024-11-05 02:28:15,852 INFO L226 Difference]: Without dead ends: 68 [2024-11-05 02:28:15,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-05 02:28:15,853 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 66 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:15,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 544 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 02:28:15,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-05 02:28:15,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2024-11-05 02:28:15,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 48 states have internal predecessors, (58), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-05 02:28:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2024-11-05 02:28:15,873 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 26 [2024-11-05 02:28:15,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:15,873 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2024-11-05 02:28:15,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:15,873 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2024-11-05 02:28:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-05 02:28:15,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:15,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:15,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:16,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:16,075 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:16,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:16,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1687611897, now seen corresponding path program 1 times [2024-11-05 02:28:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:16,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984926606] [2024-11-05 02:28:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:16,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:16,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:16,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:16,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-05 02:28:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:16,205 WARN L253 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-05 02:28:16,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:16,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:16,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:16,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:17,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:17,680 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984926606] [2024-11-05 02:28:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1984926606] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:17,680 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:17,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 7] imperfect sequences [] total 18 [2024-11-05 02:28:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000249862] [2024-11-05 02:28:17,681 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:17,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-05 02:28:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-05 02:28:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-05 02:28:17,682 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 18 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:19,446 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2024-11-05 02:28:19,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-05 02:28:19,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-11-05 02:28:19,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:19,449 INFO L225 Difference]: With dead ends: 83 [2024-11-05 02:28:19,449 INFO L226 Difference]: Without dead ends: 81 [2024-11-05 02:28:19,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2024-11-05 02:28:19,450 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 85 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:19,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 612 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-05 02:28:19,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-05 02:28:19,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 68. [2024-11-05 02:28:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 49 states have internal predecessors, (59), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-05 02:28:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2024-11-05 02:28:19,474 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 28 [2024-11-05 02:28:19,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:19,474 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2024-11-05 02:28:19,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2024-11-05 02:28:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-05 02:28:19,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:19,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:19,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:19,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:19,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:19,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:19,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1850407916, now seen corresponding path program 1 times [2024-11-05 02:28:19,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:19,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323519289] [2024-11-05 02:28:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:19,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:19,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:19,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:19,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-05 02:28:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:19,775 WARN L253 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-05 02:28:19,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:19,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:19,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:19,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:20,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:21,303 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323519289] [2024-11-05 02:28:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [323519289] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:21,303 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:21,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 9] imperfect sequences [] total 22 [2024-11-05 02:28:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148913154] [2024-11-05 02:28:21,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:21,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-05 02:28:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:21,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-05 02:28:21,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-11-05 02:28:21,305 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 22 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:23,288 INFO L93 Difference]: Finished difference Result 94 states and 116 transitions. [2024-11-05 02:28:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-05 02:28:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2024-11-05 02:28:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:23,293 INFO L225 Difference]: With dead ends: 94 [2024-11-05 02:28:23,293 INFO L226 Difference]: Without dead ends: 92 [2024-11-05 02:28:23,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=161, Invalid=1171, Unknown=0, NotChecked=0, Total=1332 [2024-11-05 02:28:23,294 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:23,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 587 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-05 02:28:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-05 02:28:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2024-11-05 02:28:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.25) internal successors, (60), 50 states have internal predecessors, (60), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-05 02:28:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2024-11-05 02:28:23,318 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 30 [2024-11-05 02:28:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:23,319 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2024-11-05 02:28:23,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2024-11-05 02:28:23,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-05 02:28:23,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:23,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:23,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-05 02:28:23,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:23,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:23,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1395309347, now seen corresponding path program 1 times [2024-11-05 02:28:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:23,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113952053] [2024-11-05 02:28:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:23,522 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:23,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:23,524 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:23,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-05 02:28:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:23,655 WARN L253 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-05 02:28:23,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:23,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:23,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:23,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:24,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 02:28:24,540 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:24,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113952053] [2024-11-05 02:28:24,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1113952053] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:24,540 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:24,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 3] imperfect sequences [] total 11 [2024-11-05 02:28:24,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511869158] [2024-11-05 02:28:24,541 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:24,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-05 02:28:24,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-05 02:28:24,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-05 02:28:24,542 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:25,345 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2024-11-05 02:28:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-05 02:28:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2024-11-05 02:28:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:25,350 INFO L225 Difference]: With dead ends: 130 [2024-11-05 02:28:25,350 INFO L226 Difference]: Without dead ends: 77 [2024-11-05 02:28:25,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-05 02:28:25,352 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:25,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 320 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-05 02:28:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-05 02:28:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2024-11-05 02:28:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.26) internal successors, (63), 52 states have internal predecessors, (63), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-05 02:28:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2024-11-05 02:28:25,381 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 31 [2024-11-05 02:28:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:25,382 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2024-11-05 02:28:25,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-05 02:28:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2024-11-05 02:28:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:25,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:25,383 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:25,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-05 02:28:25,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:25,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:25,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1138780288, now seen corresponding path program 1 times [2024-11-05 02:28:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:25,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813144359] [2024-11-05 02:28:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:25,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:25,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:25,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:25,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-05 02:28:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:25,701 WARN L253 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-05 02:28:25,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:25,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:25,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:25,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:26,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:27,253 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:27,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813144359] [2024-11-05 02:28:27,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [813144359] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:27,253 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2024-11-05 02:28:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827781845] [2024-11-05 02:28:27,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-05 02:28:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:27,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-05 02:28:27,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-05 02:28:27,255 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:28,310 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2024-11-05 02:28:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-05 02:28:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 42 [2024-11-05 02:28:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:28,312 INFO L225 Difference]: With dead ends: 135 [2024-11-05 02:28:28,312 INFO L226 Difference]: Without dead ends: 76 [2024-11-05 02:28:28,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-05 02:28:28,313 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 81 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:28,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 462 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-05 02:28:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-05 02:28:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-05 02:28:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 55 states have internal predecessors, (66), 11 states have call successors, (11), 8 states have call predecessors, (11), 10 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-05 02:28:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2024-11-05 02:28:28,366 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 42 [2024-11-05 02:28:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:28,367 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2024-11-05 02:28:28,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2024-11-05 02:28:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:28,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:28,368 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:28,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-05 02:28:28,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:28,570 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:28,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1272793794, now seen corresponding path program 1 times [2024-11-05 02:28:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316316311] [2024-11-05 02:28:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:28,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:28,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:28,574 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:28,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-05 02:28:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:28,718 WARN L253 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-05 02:28:28,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:28,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:28,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:28,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:29,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:30,481 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:30,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316316311] [2024-11-05 02:28:30,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [316316311] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:30,481 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2024-11-05 02:28:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296245265] [2024-11-05 02:28:30,482 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:30,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-05 02:28:30,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-05 02:28:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-05 02:28:30,483 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand has 22 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 19 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-05 02:28:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:31,816 INFO L93 Difference]: Finished difference Result 159 states and 201 transitions. [2024-11-05 02:28:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-05 02:28:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 19 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 42 [2024-11-05 02:28:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:31,817 INFO L225 Difference]: With dead ends: 159 [2024-11-05 02:28:31,817 INFO L226 Difference]: Without dead ends: 96 [2024-11-05 02:28:31,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2024-11-05 02:28:31,819 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 93 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:31,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 756 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 02:28:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-05 02:28:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 86. [2024-11-05 02:28:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 66 states have internal predecessors, (84), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-05 02:28:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-05 02:28:31,855 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 42 [2024-11-05 02:28:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:31,856 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-05 02:28:31,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 19 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-05 02:28:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-05 02:28:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:31,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:31,857 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:31,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:32,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:32,061 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:32,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:32,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1210754180, now seen corresponding path program 1 times [2024-11-05 02:28:32,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:32,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897609410] [2024-11-05 02:28:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:32,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:32,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:32,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:32,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-05 02:28:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:32,172 WARN L253 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-05 02:28:32,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:32,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:32,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:32,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:33,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:33,653 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:33,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897609410] [2024-11-05 02:28:33,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1897609410] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:33,654 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:33,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 8] imperfect sequences [] total 18 [2024-11-05 02:28:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605467073] [2024-11-05 02:28:33,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:33,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-05 02:28:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-05 02:28:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-05 02:28:33,655 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 18 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:35,037 INFO L93 Difference]: Finished difference Result 190 states and 250 transitions. [2024-11-05 02:28:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-05 02:28:35,037 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 42 [2024-11-05 02:28:35,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:35,038 INFO L225 Difference]: With dead ends: 190 [2024-11-05 02:28:35,038 INFO L226 Difference]: Without dead ends: 115 [2024-11-05 02:28:35,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-11-05 02:28:35,039 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 122 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:35,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 539 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-05 02:28:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-05 02:28:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 90. [2024-11-05 02:28:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 70 states have internal predecessors, (90), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-05 02:28:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2024-11-05 02:28:35,099 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 42 [2024-11-05 02:28:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:35,099 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2024-11-05 02:28:35,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:35,099 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2024-11-05 02:28:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:35,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:35,102 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:35,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-05 02:28:35,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:35,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:35,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:35,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1720227270, now seen corresponding path program 1 times [2024-11-05 02:28:35,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:35,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637610119] [2024-11-05 02:28:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:35,307 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:35,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:35,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:35,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-05 02:28:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:35,447 WARN L253 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-05 02:28:35,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:35,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:35,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:35,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:36,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:36,835 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637610119] [2024-11-05 02:28:36,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1637610119] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:36,835 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:36,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 20 [2024-11-05 02:28:36,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797937769] [2024-11-05 02:28:36,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:36,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-05 02:28:36,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:36,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-05 02:28:36,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-05 02:28:36,836 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 20 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-05 02:28:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:38,155 INFO L93 Difference]: Finished difference Result 214 states and 287 transitions. [2024-11-05 02:28:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-05 02:28:38,157 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 42 [2024-11-05 02:28:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:38,158 INFO L225 Difference]: With dead ends: 214 [2024-11-05 02:28:38,158 INFO L226 Difference]: Without dead ends: 135 [2024-11-05 02:28:38,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-11-05 02:28:38,159 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 137 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:38,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 605 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 02:28:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-05 02:28:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 94. [2024-11-05 02:28:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 71 states have (on average 1.352112676056338) internal successors, (96), 74 states have internal predecessors, (96), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-05 02:28:38,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2024-11-05 02:28:38,193 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 42 [2024-11-05 02:28:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:38,193 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2024-11-05 02:28:38,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 8 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-05 02:28:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2024-11-05 02:28:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:38,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:38,194 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-05 02:28:38,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-05 02:28:38,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:38,395 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:38,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1697595016, now seen corresponding path program 1 times [2024-11-05 02:28:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:38,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335892294] [2024-11-05 02:28:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:38,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:38,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:38,397 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:38,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-05 02:28:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:38,504 WARN L253 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-05 02:28:38,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:38,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:38,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:38,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:39,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:39,414 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335892294] [2024-11-05 02:28:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [335892294] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:39,414 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2024-11-05 02:28:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986485168] [2024-11-05 02:28:39,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:39,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-05 02:28:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-05 02:28:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-05 02:28:39,416 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 15 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:40,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:40,146 INFO L93 Difference]: Finished difference Result 215 states and 289 transitions. [2024-11-05 02:28:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-05 02:28:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 42 [2024-11-05 02:28:40,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:40,151 INFO L225 Difference]: With dead ends: 215 [2024-11-05 02:28:40,151 INFO L226 Difference]: Without dead ends: 87 [2024-11-05 02:28:40,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-05 02:28:40,152 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 74 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:40,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 624 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-05 02:28:40,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-05 02:28:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-05 02:28:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.3125) internal successors, (84), 67 states have internal predecessors, (84), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-05 02:28:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2024-11-05 02:28:40,194 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 42 [2024-11-05 02:28:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:40,194 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2024-11-05 02:28:40,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2024-11-05 02:28:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-05 02:28:40,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:40,195 INFO L215 NwaCegarLoop]: trace histogram [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 02:28:40,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:40,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:40,397 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:40,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2046464156, now seen corresponding path program 1 times [2024-11-05 02:28:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043632106] [2024-11-05 02:28:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:40,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:40,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:40,401 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:40,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-05 02:28:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:40,522 WARN L253 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-05 02:28:40,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:40,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:40,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:40,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2024-11-05 02:28:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-05 02:28:41,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-05 02:28:41,896 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:41,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043632106] [2024-11-05 02:28:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1043632106] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:41,896 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2024-11-05 02:28:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546142400] [2024-11-05 02:28:41,896 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:41,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-05 02:28:41,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-05 02:28:41,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-05 02:28:41,897 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:42,376 INFO L93 Difference]: Finished difference Result 172 states and 216 transitions. [2024-11-05 02:28:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-05 02:28:42,377 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 44 [2024-11-05 02:28:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:42,377 INFO L225 Difference]: With dead ends: 172 [2024-11-05 02:28:42,378 INFO L226 Difference]: Without dead ends: 91 [2024-11-05 02:28:42,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-05 02:28:42,378 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 74 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:42,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 454 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-05 02:28:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-05 02:28:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2024-11-05 02:28:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.28125) internal successors, (82), 67 states have internal predecessors, (82), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-05 02:28:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2024-11-05 02:28:42,421 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 44 [2024-11-05 02:28:42,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:42,421 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2024-11-05 02:28:42,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-05 02:28:42,422 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2024-11-05 02:28:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 02:28:42,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:42,422 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:42,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-05 02:28:42,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:42,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:42,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:42,625 INFO L85 PathProgramCache]: Analyzing trace with hash 964483973, now seen corresponding path program 1 times [2024-11-05 02:28:42,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:42,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925646697] [2024-11-05 02:28:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:42,625 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:42,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:42,627 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:42,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-05 02:28:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-05 02:28:42,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-05 02:28:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-05 02:28:42,874 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-05 02:28:42,874 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-05 02:28:42,875 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 02:28:42,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-05 02:28:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:43,079 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:43,105 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 02:28:43,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 02:28:43 BoogieIcfgContainer [2024-11-05 02:28:43,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 02:28:43,116 INFO L158 Benchmark]: Toolchain (without parser) took 33535.33ms. Allocated memory was 183.5MB in the beginning and 524.3MB in the end (delta: 340.8MB). Free memory was 121.2MB in the beginning and 484.2MB in the end (delta: -363.0MB). Peak memory consumption was 290.6MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,116 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 02:28:43,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2481.80ms. Allocated memory was 183.5MB in the beginning and 302.0MB in the end (delta: 118.5MB). Free memory was 121.0MB in the beginning and 127.7MB in the end (delta: -6.7MB). Peak memory consumption was 113.3MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.77ms. Allocated memory is still 302.0MB. Free memory was 127.7MB in the beginning and 122.0MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,116 INFO L158 Benchmark]: Boogie Preprocessor took 76.16ms. Allocated memory is still 302.0MB. Free memory was 122.0MB in the beginning and 117.2MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,117 INFO L158 Benchmark]: RCFGBuilder took 561.87ms. Allocated memory is still 302.0MB. Free memory was 117.2MB in the beginning and 258.3MB in the end (delta: -141.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,117 INFO L158 Benchmark]: TraceAbstraction took 30308.36ms. Allocated memory was 302.0MB in the beginning and 524.3MB in the end (delta: 222.3MB). Free memory was 257.8MB in the beginning and 484.2MB in the end (delta: -226.4MB). Peak memory consumption was 307.8MB. Max. memory is 8.0GB. [2024-11-05 02:28:43,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 137.3MB in the beginning and 137.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2481.80ms. Allocated memory was 183.5MB in the beginning and 302.0MB in the end (delta: 118.5MB). Free memory was 121.0MB in the beginning and 127.7MB in the end (delta: -6.7MB). Peak memory consumption was 113.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.77ms. Allocated memory is still 302.0MB. Free memory was 127.7MB in the beginning and 122.0MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.16ms. Allocated memory is still 302.0MB. Free memory was 122.0MB in the beginning and 117.2MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 561.87ms. Allocated memory is still 302.0MB. Free memory was 117.2MB in the beginning and 258.3MB in the end (delta: -141.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 30308.36ms. Allocated memory was 302.0MB in the beginning and 524.3MB in the end (delta: 222.3MB). Free memory was 257.8MB in the beginning and 484.2MB in the end (delta: -226.4MB). Peak memory consumption was 307.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7326] static __thread int tl_last_error = 0; VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7355] CALL aws_linked_list_init_harness() [L7344] struct aws_linked_list list; VAL [list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7350] CALL aws_linked_list_init(&list) VAL [\old(list)={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4771] CALL assume_abort_if_not((list)) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4771] RET assume_abort_if_not((list)) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4772] list->head.next = &list->tail [L4773-L4774] list->head.prev = ((void *)0) [L4776] list->tail.prev = &list->head [L4777-L4778] list->tail.next = ((void *)0) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4780] CALL, EXPR aws_linked_list_is_valid(list) VAL [\old(list)={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next [L4694] EXPR list->head.next [L4694] EXPR list && list->head.next VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) [L4694] EXPR list->head.prev [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev [L4696] EXPR list->tail.prev [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4696] EXPR list->tail.next [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] COND TRUE list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4700] CALL, EXPR aws_linked_list_is_valid_deep(list) [L4734] COND FALSE !(!list) [L4740] const struct aws_linked_list_node *temp = &list->head; [L4743-L4746] _Bool head_reaches_tail = 0 ; VAL [head_reaches_tail=0, list={-1:0}, s_can_fail_allocator_static={4:0}, temp={-1:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={-1:0}, s_can_fail_allocator_static={4:0}, temp={-1:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={-1:0}, s_can_fail_allocator_static={4:0}, temp={-1:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [\old(node)={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [\old(node)={-1:0}, node={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next [L4718] EXPR node->next [L4718] EXPR node && node->next VAL [\old(node)={-1:0}, node={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [\old(node)={-1:0}, node={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node [L4718] EXPR node->next [L4718] EXPR node->next->prev [L4718] EXPR node && node->next && node->next->prev == node VAL [\old(node)={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] return node && node->next && node->next->prev == node; [L4756] RET, EXPR aws_linked_list_node_next_is_valid(temp) VAL [head_reaches_tail=0, list={-1:0}, s_can_fail_allocator_static={4:0}, temp={-1:0}, tl_last_error=0] [L4756] COND FALSE !(!aws_linked_list_node_next_is_valid(temp)) [L4762] EXPR temp->next [L4762] temp = temp->next [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={-1:0}, s_can_fail_allocator_static={4:0}, temp={-1:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L4780] RET, EXPR aws_linked_list_is_valid(list) VAL [\old(list)={-1:0}, list={-1:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4780] CALL __VERIFIER_assert(!((aws_linked_list_is_valid(list)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] COND TRUE !cond VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] reach_error() VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.2s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 912 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 895 mSDsluCounter, 5578 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4925 mSDsCounter, 330 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2797 IncrementalHoareTripleChecker+Invalid, 3127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 330 mSolverCounterUnsat, 653 mSDtfsCounter, 2797 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 841 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=9, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 125 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 768 ConstructedInterpolants, 119 QuantifiedInterpolants, 10761 SizeOfPredicates, 208 NumberOfNonLiveVariables, 1395 ConjunctsInSsa, 724 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 72/72 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-05 02:28:43,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...