/root/.sdkman/candidates/java/11.0.12-open/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-tmp.fs.smtinterpol-bv-eval-3dddfdf-m [2024-11-15 16:27:10,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-15 16:27:10,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-15 16:27:10,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-15 16:27:10,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-15 16:27:10,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-15 16:27:10,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-15 16:27:10,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-15 16:27:10,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-15 16:27:10,771 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-15 16:27:10,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-15 16:27:10,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-15 16:27:10,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-15 16:27:10,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-15 16:27:10,775 INFO L153 SettingsManager]: * Use SBE=true [2024-11-15 16:27:10,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-15 16:27:10,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-15 16:27:10,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-15 16:27:10,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-15 16:27:10,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-15 16:27:10,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-15 16:27:10,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-15 16:27:10,783 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-15 16:27:10,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-15 16:27:10,783 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-15 16:27:10,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-15 16:27:10,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-15 16:27:10,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-15 16:27:10,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-15 16:27:10,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-15 16:27:10,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-15 16:27:10,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:10,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-15 16:27:10,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-15 16:27:10,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-15 16:27:10,788 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-15 16:27:10,788 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-15 16:27:10,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-15 16:27:10,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-15 16:27:10,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-15 16:27:10,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-15 16:27:10,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-15 16:27:11,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-15 16:27:11,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-15 16:27:11,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-15 16:27:11,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-15 16:27:11,052 INFO L274 PluginConnector]: CDTParser initialized [2024-11-15 16:27:11,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i [2024-11-15 16:27:12,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-15 16:27:13,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-15 16:27:13,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i [2024-11-15 16:27:13,123 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9e225a3/214ccf2ae3b649b68f6e9f6334f592d8/FLAG28e5fd5c8 [2024-11-15 16:27:13,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9e225a3/214ccf2ae3b649b68f6e9f6334f592d8 [2024-11-15 16:27:13,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-15 16:27:13,259 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-15 16:27:13,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:13,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-15 16:27:13,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-15 16:27:13,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:13" (1/1) ... [2024-11-15 16:27:13,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c234c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:13, skipping insertion in model container [2024-11-15 16:27:13,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:13" (1/1) ... [2024-11-15 16:27:13,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:13,668 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4499,4512] [2024-11-15 16:27:13,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4559,4572] [2024-11-15 16:27:14,404 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,503 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,504 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,505 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,518 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,519 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,519 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,520 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,521 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,521 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,527 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,528 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,536 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,537 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,537 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,538 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,539 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,540 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,540 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,541 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,543 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,544 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,544 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:14,944 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:14,946 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,168 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:15,228 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-15 16:27:15,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:15,296 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4499,4512] [2024-11-15 16:27:15,297 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4559,4572] [2024-11-15 16:27:15,330 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,349 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,349 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,350 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,355 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,356 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,356 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,357 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,357 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,358 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,358 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,360 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,360 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,362 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,362 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,366 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,367 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,367 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,367 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,368 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,368 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,369 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,369 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,370 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,370 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,371 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,371 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,371 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,372 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,428 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,432 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,482 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:15,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:15,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-15 16:27:15,522 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4499,4512] [2024-11-15 16:27:15,523 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_pop_front_harness.i[4559,4572] [2024-11-15 16:27:15,719 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,719 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,720 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,720 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,720 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,732 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,733 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,734 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,734 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,739 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,740 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,740 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,740 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:15,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:15,964 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-15 16:27:15,976 INFO L204 MainTranslator]: Completed translation [2024-11-15 16:27:15,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15 WrapperNode [2024-11-15 16:27:15,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:15,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:15,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-15 16:27:15,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-15 16:27:15,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,129 INFO L138 Inliner]: procedures = 687, calls = 1044, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 227 [2024-11-15 16:27:16,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:16,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-15 16:27:16,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-15 16:27:16,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-15 16:27:16,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,194 INFO L175 MemorySlicer]: Split 43 memory accesses to 3 slices as follows [2, 5, 36]. 84 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 9 writes are split as follows [0, 0, 9]. [2024-11-15 16:27:16,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-15 16:27:16,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-15 16:27:16,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-15 16:27:16,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-15 16:27:16,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (1/1) ... [2024-11-15 16:27:16,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:16,312 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) [2024-11-15 16:27:16,319 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 [2024-11-15 16:27:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-15 16:27:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-15 16:27:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_remove [2024-11-15 16:27:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_remove [2024-11-15 16:27:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-15 16:27:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-15 16:27:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-15 16:27:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-15 16:27:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-15 16:27:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-15 16:27:16,371 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-15 16:27:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-15 16:27:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-15 16:27:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-15 16:27:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-15 16:27:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-15 16:27:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-15 16:27:16,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-15 16:27:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-15 16:27:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-15 16:27:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-15 16:27:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-15 16:27:16,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-15 16:27:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-15 16:27:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-15 16:27:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-15 16:27:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-15 16:27:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-15 16:27:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-15 16:27:16,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-15 16:27:16,665 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-15 16:27:17,251 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-15 16:27:17,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-15 16:27:17,271 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-15 16:27:17,271 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-15 16:27:17,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:17 BoogieIcfgContainer [2024-11-15 16:27:17,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-15 16:27:17,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-15 16:27:17,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-15 16:27:17,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-15 16:27:17,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 04:27:13" (1/3) ... [2024-11-15 16:27:17,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203eb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:17, skipping insertion in model container [2024-11-15 16:27:17,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:15" (2/3) ... [2024-11-15 16:27:17,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203eb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:17, skipping insertion in model container [2024-11-15 16:27:17,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:17" (3/3) ... [2024-11-15 16:27:17,280 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_pop_front_harness.i [2024-11-15 16:27:17,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-15 16:27:17,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-15 16:27:17,393 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-15 16:27:17,402 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;@4591cb06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 16:27:17,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-15 16:27:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-15 16:27:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-15 16:27:17,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:17,423 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:17,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:17,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1634297944, now seen corresponding path program 1 times [2024-11-15 16:27:17,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:17,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929153348] [2024-11-15 16:27:17,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:17,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:17,802 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377977229] [2024-11-15 16:27:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:17,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:17,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:17,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:17,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-15 16:27:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:18,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-15 16:27:18,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-15 16:27:18,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:18,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929153348] [2024-11-15 16:27:18,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377977229] [2024-11-15 16:27:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377977229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:18,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-15 16:27:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204609199] [2024-11-15 16:27:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:18,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-15 16:27:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-15 16:27:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:27:18,140 INFO L87 Difference]: Start difference. First operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-15 16:27:18,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:18,200 INFO L93 Difference]: Finished difference Result 266 states and 401 transitions. [2024-11-15 16:27:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 16:27:18,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-15 16:27:18,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:18,217 INFO L225 Difference]: With dead ends: 266 [2024-11-15 16:27:18,217 INFO L226 Difference]: Without dead ends: 132 [2024-11-15 16:27:18,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:27:18,228 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:18,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-15 16:27:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-15 16:27:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 84 states have (on average 1.25) internal successors, (105), 85 states have internal predecessors, (105), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-15 16:27:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2024-11-15 16:27:18,286 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 116 [2024-11-15 16:27:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:18,287 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2024-11-15 16:27:18,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-15 16:27:18,289 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2024-11-15 16:27:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-15 16:27:18,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:18,291 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:18,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-15 16:27:18,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-15 16:27:18,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:18,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:18,498 INFO L85 PathProgramCache]: Analyzing trace with hash 851280282, now seen corresponding path program 1 times [2024-11-15 16:27:18,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:18,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955135269] [2024-11-15 16:27:18,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:18,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:18,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:18,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713340569] [2024-11-15 16:27:18,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:18,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:18,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:18,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-15 16:27:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:18,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:27:18,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-15 16:27:18,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:18,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:18,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955135269] [2024-11-15 16:27:18,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:18,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713340569] [2024-11-15 16:27:18,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713340569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:18,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:18,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:27:18,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8537240] [2024-11-15 16:27:18,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:18,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:27:18,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:27:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:18,963 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:19,027 INFO L93 Difference]: Finished difference Result 247 states and 338 transitions. [2024-11-15 16:27:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:27:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2024-11-15 16:27:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:19,032 INFO L225 Difference]: With dead ends: 247 [2024-11-15 16:27:19,033 INFO L226 Difference]: Without dead ends: 135 [2024-11-15 16:27:19,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:19,038 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:19,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 517 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-15 16:27:19,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2024-11-15 16:27:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.244186046511628) internal successors, (107), 87 states have internal predecessors, (107), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-15 16:27:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 180 transitions. [2024-11-15 16:27:19,074 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 180 transitions. Word has length 116 [2024-11-15 16:27:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:19,080 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 180 transitions. [2024-11-15 16:27:19,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 180 transitions. [2024-11-15 16:27:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-15 16:27:19,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:19,082 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:19,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-15 16:27:19,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-15 16:27:19,283 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:19,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash -911862316, now seen corresponding path program 1 times [2024-11-15 16:27:19,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:19,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279169641] [2024-11-15 16:27:19,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:19,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:19,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354781856] [2024-11-15 16:27:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:19,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:19,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:19,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:19,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-15 16:27:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:19,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:27:19,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-15 16:27:19,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:19,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:19,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279169641] [2024-11-15 16:27:19,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:19,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354781856] [2024-11-15 16:27:19,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354781856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:19,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:19,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:27:19,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183462603] [2024-11-15 16:27:19,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:19,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:27:19,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:19,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:27:19,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:19,657 INFO L87 Difference]: Start difference. First operand 134 states and 180 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:19,712 INFO L93 Difference]: Finished difference Result 251 states and 343 transitions. [2024-11-15 16:27:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:27:19,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2024-11-15 16:27:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:19,717 INFO L225 Difference]: With dead ends: 251 [2024-11-15 16:27:19,717 INFO L226 Difference]: Without dead ends: 137 [2024-11-15 16:27:19,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:19,722 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:19,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 519 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-15 16:27:19,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-15 16:27:19,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 90 states have internal predecessors, (110), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-15 16:27:19,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 183 transitions. [2024-11-15 16:27:19,747 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 183 transitions. Word has length 116 [2024-11-15 16:27:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:19,748 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 183 transitions. [2024-11-15 16:27:19,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 183 transitions. [2024-11-15 16:27:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-15 16:27:19,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:19,750 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:19,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-15 16:27:19,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:19,951 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:19,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1271238514, now seen corresponding path program 1 times [2024-11-15 16:27:19,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:19,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292810781] [2024-11-15 16:27:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:19,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:20,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706213520] [2024-11-15 16:27:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:20,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:20,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:20,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:20,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-15 16:27:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:20,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:27:20,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-15 16:27:20,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:20,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:20,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292810781] [2024-11-15 16:27:20,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:20,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706213520] [2024-11-15 16:27:20,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706213520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:20,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944266250] [2024-11-15 16:27:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:20,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:20,301 INFO L87 Difference]: Start difference. First operand 137 states and 183 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-15 16:27:20,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:20,432 INFO L93 Difference]: Finished difference Result 256 states and 345 transitions. [2024-11-15 16:27:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 116 [2024-11-15 16:27:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:20,436 INFO L225 Difference]: With dead ends: 256 [2024-11-15 16:27:20,436 INFO L226 Difference]: Without dead ends: 139 [2024-11-15 16:27:20,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:20,438 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:20,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 807 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-15 16:27:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-15 16:27:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.2333333333333334) internal successors, (111), 92 states have internal predecessors, (111), 37 states have call successors, (37), 10 states have call predecessors, (37), 11 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2024-11-15 16:27:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 188 transitions. [2024-11-15 16:27:20,457 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 188 transitions. Word has length 116 [2024-11-15 16:27:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:20,458 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 188 transitions. [2024-11-15 16:27:20,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-15 16:27:20,458 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 188 transitions. [2024-11-15 16:27:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-15 16:27:20,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:20,463 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:20,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-15 16:27:20,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:20,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:20,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash 383901392, now seen corresponding path program 1 times [2024-11-15 16:27:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588478771] [2024-11-15 16:27:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:20,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:20,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445569520] [2024-11-15 16:27:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:20,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:20,732 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:20,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-15 16:27:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:20,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-15 16:27:20,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-15 16:27:21,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:21,032 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588478771] [2024-11-15 16:27:21,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445569520] [2024-11-15 16:27:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445569520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:21,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692403426] [2024-11-15 16:27:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:21,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:21,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:21,034 INFO L87 Difference]: Start difference. First operand 139 states and 188 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-15 16:27:21,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:21,282 INFO L93 Difference]: Finished difference Result 263 states and 358 transitions. [2024-11-15 16:27:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:21,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 118 [2024-11-15 16:27:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:21,284 INFO L225 Difference]: With dead ends: 263 [2024-11-15 16:27:21,284 INFO L226 Difference]: Without dead ends: 144 [2024-11-15 16:27:21,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:27:21,289 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 46 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:21,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 873 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:27:21,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-15 16:27:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2024-11-15 16:27:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 95 states have internal predecessors, (113), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2024-11-15 16:27:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 192 transitions. [2024-11-15 16:27:21,314 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 192 transitions. Word has length 118 [2024-11-15 16:27:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:21,315 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 192 transitions. [2024-11-15 16:27:21,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-15 16:27:21,315 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 192 transitions. [2024-11-15 16:27:21,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-15 16:27:21,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:21,316 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:21,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-15 16:27:21,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:21,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:21,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1545770691, now seen corresponding path program 1 times [2024-11-15 16:27:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:21,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263958273] [2024-11-15 16:27:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:21,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:21,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437649292] [2024-11-15 16:27:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:21,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:21,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-15 16:27:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:21,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 16:27:21,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-15 16:27:21,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:21,965 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:21,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263958273] [2024-11-15 16:27:21,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437649292] [2024-11-15 16:27:21,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437649292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:21,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:21,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-15 16:27:21,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102527877] [2024-11-15 16:27:21,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-15 16:27:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-15 16:27:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:27:21,968 INFO L87 Difference]: Start difference. First operand 142 states and 192 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-15 16:27:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:22,297 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2024-11-15 16:27:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-15 16:27:22,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 120 [2024-11-15 16:27:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:22,302 INFO L225 Difference]: With dead ends: 275 [2024-11-15 16:27:22,302 INFO L226 Difference]: Without dead ends: 153 [2024-11-15 16:27:22,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-15 16:27:22,307 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 55 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:22,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1017 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-15 16:27:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-15 16:27:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 144. [2024-11-15 16:27:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 97 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2024-11-15 16:27:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 195 transitions. [2024-11-15 16:27:22,333 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 195 transitions. Word has length 120 [2024-11-15 16:27:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:22,333 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 195 transitions. [2024-11-15 16:27:22,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-15 16:27:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 195 transitions. [2024-11-15 16:27:22,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-15 16:27:22,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:22,335 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:22,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-15 16:27:22,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:22,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:22,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1786998227, now seen corresponding path program 1 times [2024-11-15 16:27:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:22,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950446108] [2024-11-15 16:27:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:22,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:22,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016100000] [2024-11-15 16:27:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:22,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:22,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:22,615 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:22,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-15 16:27:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:22,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-15 16:27:22,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-15 16:27:22,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:22,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950446108] [2024-11-15 16:27:22,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016100000] [2024-11-15 16:27:22,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016100000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:22,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-15 16:27:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614164247] [2024-11-15 16:27:22,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:22,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-15 16:27:22,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-15 16:27:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:27:22,865 INFO L87 Difference]: Start difference. First operand 144 states and 195 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:22,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:22,907 INFO L93 Difference]: Finished difference Result 272 states and 375 transitions. [2024-11-15 16:27:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-15 16:27:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 121 [2024-11-15 16:27:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:22,910 INFO L225 Difference]: With dead ends: 272 [2024-11-15 16:27:22,911 INFO L226 Difference]: Without dead ends: 148 [2024-11-15 16:27:22,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:27:22,917 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 2 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:22,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 344 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:22,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-15 16:27:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2024-11-15 16:27:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.231578947368421) internal successors, (117), 98 states have internal predecessors, (117), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (42), 36 states have call predecessors, (42), 36 states have call successors, (42) [2024-11-15 16:27:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 196 transitions. [2024-11-15 16:27:22,937 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 196 transitions. Word has length 121 [2024-11-15 16:27:22,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:22,938 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 196 transitions. [2024-11-15 16:27:22,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-15 16:27:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 196 transitions. [2024-11-15 16:27:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-15 16:27:22,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:22,940 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:22,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-15 16:27:23,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:23,145 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:23,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash -203374091, now seen corresponding path program 1 times [2024-11-15 16:27:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682853488] [2024-11-15 16:27:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:23,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:23,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773187723] [2024-11-15 16:27:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:23,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:23,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:23,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:23,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-15 16:27:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:23,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:27:23,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-15 16:27:23,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:23,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:23,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682853488] [2024-11-15 16:27:23,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:23,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773187723] [2024-11-15 16:27:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773187723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:23,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:23,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:23,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950015317] [2024-11-15 16:27:23,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:23,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:23,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:23,469 INFO L87 Difference]: Start difference. First operand 145 states and 196 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-15 16:27:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:23,560 INFO L93 Difference]: Finished difference Result 267 states and 358 transitions. [2024-11-15 16:27:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:23,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-15 16:27:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:23,563 INFO L225 Difference]: With dead ends: 267 [2024-11-15 16:27:23,563 INFO L226 Difference]: Without dead ends: 145 [2024-11-15 16:27:23,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:23,565 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:23,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 807 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-15 16:27:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-15 16:27:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.231578947368421) internal successors, (117), 98 states have internal predecessors, (117), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (41), 36 states have call predecessors, (41), 36 states have call successors, (41) [2024-11-15 16:27:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 195 transitions. [2024-11-15 16:27:23,582 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 195 transitions. Word has length 129 [2024-11-15 16:27:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:23,583 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 195 transitions. [2024-11-15 16:27:23,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-15 16:27:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 195 transitions. [2024-11-15 16:27:23,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-15 16:27:23,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:23,584 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:23,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-15 16:27:23,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-15 16:27:23,789 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:23,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2001589879, now seen corresponding path program 1 times [2024-11-15 16:27:23,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:23,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631490346] [2024-11-15 16:27:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:23,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:23,856 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366367227] [2024-11-15 16:27:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:23,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:23,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:23,858 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:23,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-15 16:27:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:24,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-15 16:27:24,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-15 16:27:24,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:24,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631490346] [2024-11-15 16:27:24,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366367227] [2024-11-15 16:27:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366367227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-15 16:27:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315715189] [2024-11-15 16:27:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:24,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-15 16:27:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-15 16:27:24,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:27:24,217 INFO L87 Difference]: Start difference. First operand 145 states and 195 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-15 16:27:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:24,462 INFO L93 Difference]: Finished difference Result 272 states and 363 transitions. [2024-11-15 16:27:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-15 16:27:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 131 [2024-11-15 16:27:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:24,465 INFO L225 Difference]: With dead ends: 272 [2024-11-15 16:27:24,465 INFO L226 Difference]: Without dead ends: 147 [2024-11-15 16:27:24,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-15 16:27:24,466 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 51 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:24,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1023 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:27:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-15 16:27:24,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-11-15 16:27:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 98 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (41), 36 states have call predecessors, (41), 36 states have call successors, (41) [2024-11-15 16:27:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2024-11-15 16:27:24,476 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 131 [2024-11-15 16:27:24,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:24,477 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2024-11-15 16:27:24,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-15 16:27:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2024-11-15 16:27:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-15 16:27:24,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:24,478 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:24,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-15 16:27:24,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:24,679 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:24,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash 714595300, now seen corresponding path program 1 times [2024-11-15 16:27:24,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:24,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586327423] [2024-11-15 16:27:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:24,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:24,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114940094] [2024-11-15 16:27:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:24,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:24,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:24,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-15 16:27:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:24,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-15 16:27:24,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-15 16:27:25,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:25,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:25,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586327423] [2024-11-15 16:27:25,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:25,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114940094] [2024-11-15 16:27:25,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114940094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:25,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:25,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-15 16:27:25,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620917161] [2024-11-15 16:27:25,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:25,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-15 16:27:25,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-15 16:27:25,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-15 16:27:25,106 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 9 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-15 16:27:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:25,391 INFO L93 Difference]: Finished difference Result 272 states and 362 transitions. [2024-11-15 16:27:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-15 16:27:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 9 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 133 [2024-11-15 16:27:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:25,394 INFO L225 Difference]: With dead ends: 272 [2024-11-15 16:27:25,394 INFO L226 Difference]: Without dead ends: 146 [2024-11-15 16:27:25,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-15 16:27:25,397 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 60 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:25,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1158 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:27:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-15 16:27:25,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2024-11-15 16:27:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 94 states have internal predecessors, (112), 37 states have call successors, (37), 10 states have call predecessors, (37), 11 states have return successors, (39), 36 states have call predecessors, (39), 36 states have call successors, (39) [2024-11-15 16:27:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 188 transitions. [2024-11-15 16:27:25,407 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 188 transitions. Word has length 133 [2024-11-15 16:27:25,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:25,408 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 188 transitions. [2024-11-15 16:27:25,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 9 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-15 16:27:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 188 transitions. [2024-11-15 16:27:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-15 16:27:25,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:25,410 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:25,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-15 16:27:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-15 16:27:25,611 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash -808976790, now seen corresponding path program 2 times [2024-11-15 16:27:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:25,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867082506] [2024-11-15 16:27:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:25,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:25,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937377113] [2024-11-15 16:27:25,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-15 16:27:25,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:25,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:25,668 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:25,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-15 16:27:25,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-15 16:27:25,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 16:27:25,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:27:25,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-15 16:27:25,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:25,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:25,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867082506] [2024-11-15 16:27:25,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:25,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937377113] [2024-11-15 16:27:25,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937377113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:25,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:25,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:25,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348275296] [2024-11-15 16:27:25,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:25,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:25,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:25,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:25,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:25,949 INFO L87 Difference]: Start difference. First operand 141 states and 188 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-15 16:27:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:26,061 INFO L93 Difference]: Finished difference Result 265 states and 356 transitions. [2024-11-15 16:27:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:26,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-15 16:27:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:26,067 INFO L225 Difference]: With dead ends: 265 [2024-11-15 16:27:26,067 INFO L226 Difference]: Without dead ends: 144 [2024-11-15 16:27:26,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:26,068 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:26,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 960 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:26,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-15 16:27:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-15 16:27:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 97 states have internal predecessors, (114), 37 states have call successors, (37), 10 states have call predecessors, (37), 12 states have return successors, (43), 36 states have call predecessors, (43), 36 states have call successors, (43) [2024-11-15 16:27:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2024-11-15 16:27:26,077 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 142 [2024-11-15 16:27:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:26,078 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2024-11-15 16:27:26,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-15 16:27:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2024-11-15 16:27:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-15 16:27:26,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:26,079 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:26,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-15 16:27:26,280 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:26,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash -414762403, now seen corresponding path program 1 times [2024-11-15 16:27:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274755419] [2024-11-15 16:27:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:26,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:26,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76037506] [2024-11-15 16:27:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:26,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:26,358 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:26,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-15 16:27:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:26,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:27:26,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-15 16:27:26,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:26,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274755419] [2024-11-15 16:27:26,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:26,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76037506] [2024-11-15 16:27:26,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76037506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:26,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:26,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003673639] [2024-11-15 16:27:26,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:26,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:26,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:26,632 INFO L87 Difference]: Start difference. First operand 144 states and 194 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-15 16:27:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:26,729 INFO L93 Difference]: Finished difference Result 265 states and 355 transitions. [2024-11-15 16:27:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 144 [2024-11-15 16:27:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:26,732 INFO L225 Difference]: With dead ends: 265 [2024-11-15 16:27:26,732 INFO L226 Difference]: Without dead ends: 144 [2024-11-15 16:27:26,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:26,734 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:26,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 960 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-15 16:27:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2024-11-15 16:27:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 95 states have internal predecessors, (113), 37 states have call successors, (37), 10 states have call predecessors, (37), 11 states have return successors, (39), 36 states have call predecessors, (39), 36 states have call successors, (39) [2024-11-15 16:27:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2024-11-15 16:27:26,743 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 144 [2024-11-15 16:27:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:26,743 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2024-11-15 16:27:26,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-15 16:27:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2024-11-15 16:27:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-15 16:27:26,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:26,745 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:26,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-15 16:27:26,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-15 16:27:26,946 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:26,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:26,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2117607862, now seen corresponding path program 1 times [2024-11-15 16:27:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:26,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130867956] [2024-11-15 16:27:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:26,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:26,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122744037] [2024-11-15 16:27:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:26,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:26,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:26,994 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:26,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-15 16:27:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:27,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-15 16:27:27,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:27,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-15 16:27:27,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-15 16:27:31,750 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#2.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) (_ bv0 64)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#2.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|))))) is different from true [2024-11-15 16:27:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 123 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-15 16:27:31,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:27:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-15 16:27:32,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:32,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130867956] [2024-11-15 16:27:32,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:32,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122744037] [2024-11-15 16:27:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122744037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:27:32,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:27:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2024-11-15 16:27:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742814183] [2024-11-15 16:27:32,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:27:32,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-15 16:27:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-15 16:27:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=199, Unknown=1, NotChecked=28, Total=272 [2024-11-15 16:27:32,366 INFO L87 Difference]: Start difference. First operand 142 states and 189 transitions. Second operand has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-15 16:27:34,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:34,002 INFO L93 Difference]: Finished difference Result 303 states and 417 transitions. [2024-11-15 16:27:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:27:34,003 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 146 [2024-11-15 16:27:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:34,005 INFO L225 Difference]: With dead ends: 303 [2024-11-15 16:27:34,005 INFO L226 Difference]: Without dead ends: 181 [2024-11-15 16:27:34,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=76, Invalid=347, Unknown=1, NotChecked=38, Total=462 [2024-11-15 16:27:34,008 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 44 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 361 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:34,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2108 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 649 Invalid, 0 Unknown, 361 Unchecked, 1.4s Time] [2024-11-15 16:27:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-15 16:27:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 152. [2024-11-15 16:27:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 103 states have internal predecessors, (124), 38 states have call successors, (38), 11 states have call predecessors, (38), 12 states have return successors, (41), 37 states have call predecessors, (41), 37 states have call successors, (41) [2024-11-15 16:27:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2024-11-15 16:27:34,022 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 146 [2024-11-15 16:27:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:34,024 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2024-11-15 16:27:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-15 16:27:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2024-11-15 16:27:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-15 16:27:34,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:34,025 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:34,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-15 16:27:34,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-15 16:27:34,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:34,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash -39271282, now seen corresponding path program 1 times [2024-11-15 16:27:34,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32878168] [2024-11-15 16:27:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:34,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:34,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174058973] [2024-11-15 16:27:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:34,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:34,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:34,282 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:34,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-15 16:27:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:34,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-15 16:27:34,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:34,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-15 16:27:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 110 proven. 34 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-15 16:27:36,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:27:37,488 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32878168] [2024-11-15 16:27:37,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174058973] [2024-11-15 16:27:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174058973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 16:27:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1552980525] [2024-11-15 16:27:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-15 16:27:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-15 16:27:37,508 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-15 16:27:37,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-15 16:27:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:38,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-15 16:27:38,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:38,247 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size [2024-11-15 16:27:38,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 80 [2024-11-15 16:27:38,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-15 16:27:38,338 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:27:38,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-15 16:27:38,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-15 16:27:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 111 proven. 34 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-15 16:27:41,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:27:42,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-15 16:27:42,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 226 treesize of output 221 [2024-11-15 16:27:42,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 156 [2024-11-15 16:27:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 10 proven. 35 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-15 16:27:42,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1552980525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:27:42,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 16:27:42,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 16] total 43 [2024-11-15 16:27:42,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143996511] [2024-11-15 16:27:42,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 16:27:42,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-15 16:27:42,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-15 16:27:42,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2024-11-15 16:27:42,464 INFO L87 Difference]: Start difference. First operand 152 states and 203 transitions. Second operand has 43 states, 43 states have (on average 4.465116279069767) internal successors, (192), 40 states have internal predecessors, (192), 21 states have call successors, (48), 4 states have call predecessors, (48), 8 states have return successors, (47), 20 states have call predecessors, (47), 20 states have call successors, (47) [2024-11-15 16:27:46,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:27:53,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:27:58,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:00,630 INFO L93 Difference]: Finished difference Result 503 states and 685 transitions. [2024-11-15 16:28:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-15 16:28:00,631 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 4.465116279069767) internal successors, (192), 40 states have internal predecessors, (192), 21 states have call successors, (48), 4 states have call predecessors, (48), 8 states have return successors, (47), 20 states have call predecessors, (47), 20 states have call successors, (47) Word has length 148 [2024-11-15 16:28:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:00,634 INFO L225 Difference]: With dead ends: 503 [2024-11-15 16:28:00,634 INFO L226 Difference]: Without dead ends: 336 [2024-11-15 16:28:00,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 510 SyntacticMatches, 21 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=618, Invalid=4352, Unknown=0, NotChecked=0, Total=4970 [2024-11-15 16:28:00,639 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 478 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 256 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:00,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 2839 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2161 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2024-11-15 16:28:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-15 16:28:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 284. [2024-11-15 16:28:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 197 states have (on average 1.248730964467005) internal successors, (246), 201 states have internal predecessors, (246), 64 states have call successors, (64), 20 states have call predecessors, (64), 22 states have return successors, (75), 62 states have call predecessors, (75), 62 states have call successors, (75) [2024-11-15 16:28:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 385 transitions. [2024-11-15 16:28:00,667 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 385 transitions. Word has length 148 [2024-11-15 16:28:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:00,670 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 385 transitions. [2024-11-15 16:28:00,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.465116279069767) internal successors, (192), 40 states have internal predecessors, (192), 21 states have call successors, (48), 4 states have call predecessors, (48), 8 states have return successors, (47), 20 states have call predecessors, (47), 20 states have call successors, (47) [2024-11-15 16:28:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 385 transitions. [2024-11-15 16:28:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-15 16:28:00,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:00,673 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:28:00,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-15 16:28:00,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-15 16:28:01,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:01,074 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:01,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash 904936916, now seen corresponding path program 1 times [2024-11-15 16:28:01,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:01,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464363247] [2024-11-15 16:28:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:01,141 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140186382] [2024-11-15 16:28:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:01,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:01,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:01,143 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:28:01,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-15 16:28:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:01,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-15 16:28:01,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:01,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-15 16:28:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 117 proven. 25 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-15 16:28:03,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:28:07,480 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-15 16:28:07,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2024-11-15 16:28:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-15 16:28:07,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:07,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464363247] [2024-11-15 16:28:07,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:07,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140186382] [2024-11-15 16:28:07,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140186382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:28:07,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:28:07,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 22 [2024-11-15 16:28:07,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156184176] [2024-11-15 16:28:07,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:28:07,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-15 16:28:07,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:07,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-15 16:28:07,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-11-15 16:28:07,649 INFO L87 Difference]: Start difference. First operand 284 states and 385 transitions. Second operand has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 20 states have internal predecessors, (138), 11 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (32), 11 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-15 16:28:11,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:16,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:20,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:24,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:32,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:36,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:40,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:42,767 INFO L93 Difference]: Finished difference Result 604 states and 799 transitions. [2024-11-15 16:28:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-15 16:28:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 20 states have internal predecessors, (138), 11 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (32), 11 states have call predecessors, (32), 10 states have call successors, (32) Word has length 148 [2024-11-15 16:28:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:42,771 INFO L225 Difference]: With dead ends: 604 [2024-11-15 16:28:42,771 INFO L226 Difference]: Without dead ends: 391 [2024-11-15 16:28:42,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 268 SyntacticMatches, 11 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=209, Invalid=1051, Unknown=0, NotChecked=0, Total=1260 [2024-11-15 16:28:42,774 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 189 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 114 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:42,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1453 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 857 Invalid, 7 Unknown, 0 Unchecked, 33.7s Time] [2024-11-15 16:28:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-15 16:28:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 377. [2024-11-15 16:28:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 271 states have (on average 1.2509225092250922) internal successors, (339), 279 states have internal predecessors, (339), 72 states have call successors, (72), 27 states have call predecessors, (72), 33 states have return successors, (89), 70 states have call predecessors, (89), 69 states have call successors, (89) [2024-11-15 16:28:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 500 transitions. [2024-11-15 16:28:42,814 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 500 transitions. Word has length 148 [2024-11-15 16:28:42,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:42,815 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 500 transitions. [2024-11-15 16:28:42,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 20 states have internal predecessors, (138), 11 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (32), 11 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-15 16:28:42,815 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 500 transitions. [2024-11-15 16:28:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-15 16:28:42,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:42,818 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:28:42,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-15 16:28:43,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-15 16:28:43,018 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:43,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:43,019 INFO L85 PathProgramCache]: Analyzing trace with hash 95590290, now seen corresponding path program 1 times [2024-11-15 16:28:43,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:43,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178578695] [2024-11-15 16:28:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:43,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:43,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:43,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439926969] [2024-11-15 16:28:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:43,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:43,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:43,075 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:28:43,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process