/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_rbegin_harness_negated.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-tmp.fs.smtinterpol-bv-eval-3dddfdf-m [2024-11-15 16:27:48,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-15 16:27:48,643 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 16:27:48,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-15 16:27:48,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-15 16:27:48,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-15 16:27:48,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-15 16:27:48,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-15 16:27:48,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-15 16:27:48,700 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-15 16:27:48,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-15 16:27:48,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-15 16:27:48,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-15 16:27:48,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-15 16:27:48,702 INFO L153 SettingsManager]: * Use SBE=true [2024-11-15 16:27:48,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-15 16:27:48,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-15 16:27:48,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-15 16:27:48,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-15 16:27:48,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-15 16:27:48,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-15 16:27:48,706 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-15 16:27:48,706 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-15 16:27:48,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-15 16:27:48,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-15 16:27:48,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-15 16:27:48,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-15 16:27:48,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-15 16:27:48,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-15 16:27:48,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-15 16:27:48,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-15 16:27:48,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:48,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-15 16:27:48,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-15 16:27:48,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-15 16:27:48,709 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-15 16:27:48,710 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-15 16:27:48,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-15 16:27:48,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-15 16:27:48,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-15 16:27:48,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-15 16:27:48,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-15 16:27:48,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-15 16:27:48,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-15 16:27:48,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-15 16:27:48,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-15 16:27:48,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-15 16:27:48,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_rbegin_harness_negated.i [2024-11-15 16:27:50,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-15 16:27:51,186 INFO L384 CDTParser]: Found 1 translation units. [2024-11-15 16:27:51,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_rbegin_harness_negated.i [2024-11-15 16:27:51,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57df92db2/b76e2385ab1146af86f0ea4584a54309/FLAG69dce9684 [2024-11-15 16:27:51,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57df92db2/b76e2385ab1146af86f0ea4584a54309 [2024-11-15 16:27:51,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-15 16:27:51,298 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-15 16:27:51,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:51,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-15 16:27:51,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-15 16:27:51,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:51" (1/1) ... [2024-11-15 16:27:51,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56683464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:51, skipping insertion in model container [2024-11-15 16:27:51,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:51" (1/1) ... [2024-11-15 16:27:51,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:51,853 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_rbegin_harness_negated.i[4496,4509] [2024-11-15 16:27:51,866 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_rbegin_harness_negated.i[4556,4569] [2024-11-15 16:27:52,305 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 16:27:52,398 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 16:27:52,399 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 16:27:52,399 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 16:27:52,407 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 16:27:52,408 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,409 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 16:27:52,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,410 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,412 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 16:27:52,412 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 16:27:52,413 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 16:27:52,414 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 16:27:52,419 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,419 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 16:27:52,420 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,420 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 16:27:52,421 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,421 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 16:27:52,421 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,422 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 16:27:52,423 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,423 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 16:27:52,424 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,424 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 16:27:52,424 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,424 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,718 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 16:27:52,719 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 16:27:52,719 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 16:27:52,720 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 16:27:52,809 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 16:27:52,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:52,832 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-15 16:27:52,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:52,878 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_rbegin_harness_negated.i[4496,4509] [2024-11-15 16:27:52,878 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_rbegin_harness_negated.i[4556,4569] [2024-11-15 16:27:52,895 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 16:27:52,904 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 16:27:52,904 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 16:27:52,904 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 16:27:52,908 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:52,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,909 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:52,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,911 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 16:27:52,911 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 16:27:52,912 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 16:27:52,912 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 16:27:52,915 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,916 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 16:27:52,916 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,916 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 16:27:52,917 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,917 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 16:27:52,917 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,917 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 16:27:52,918 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,919 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 16:27:52,919 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,919 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 16:27:52,919 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:52,919 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,004 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:53,004 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:53,005 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 16:27:53,005 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 16:27:53,053 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 16:27:53,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:53,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-15 16:27:53,085 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_rbegin_harness_negated.i[4496,4509] [2024-11-15 16:27:53,086 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_rbegin_harness_negated.i[4556,4569] [2024-11-15 16:27:53,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,150 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,151 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,152 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,153 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,153 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,153 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,154 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,154 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:53,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:53,414 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-15 16:27:53,425 INFO L204 MainTranslator]: Completed translation [2024-11-15 16:27:53,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53 WrapperNode [2024-11-15 16:27:53,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:53,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:53,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-15 16:27:53,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-15 16:27:53,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,513 INFO L138 Inliner]: procedures = 687, calls = 1039, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 144 [2024-11-15 16:27:53,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:53,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-15 16:27:53,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-15 16:27:53,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-15 16:27:53,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,551 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 5, 17]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2024-11-15 16:27:53,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-15 16:27:53,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-15 16:27:53,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-15 16:27:53,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-15 16:27:53,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (1/1) ... [2024-11-15 16:27:53,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:53,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:53,607 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 16:27:53,609 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 16:27:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-15 16:27:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-15 16:27:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-15 16:27:53,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-15 16:27:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-15 16:27:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-15 16:27:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-15 16:27:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-15 16:27:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-15 16:27:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-15 16:27:53,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-15 16:27:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-15 16:27:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-15 16:27:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-15 16:27:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-15 16:27:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-15 16:27:53,643 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-15 16:27:53,917 INFO L238 CfgBuilder]: Building ICFG [2024-11-15 16:27:53,920 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-15 16:27:54,209 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-15 16:27:54,209 INFO L287 CfgBuilder]: Performing block encoding [2024-11-15 16:27:54,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-15 16:27:54,228 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-15 16:27:54,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:54 BoogieIcfgContainer [2024-11-15 16:27:54,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-15 16:27:54,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-15 16:27:54,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-15 16:27:54,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-15 16:27:54,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 04:27:51" (1/3) ... [2024-11-15 16:27:54,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4660f81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:54, skipping insertion in model container [2024-11-15 16:27:54,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:53" (2/3) ... [2024-11-15 16:27:54,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4660f81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:54, skipping insertion in model container [2024-11-15 16:27:54,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:54" (3/3) ... [2024-11-15 16:27:54,239 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_rbegin_harness_negated.i [2024-11-15 16:27:54,251 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-15 16:27:54,251 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-15 16:27:54,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-15 16:27:54,347 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;@2950fd6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 16:27:54,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-15 16:27:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-15 16:27:54,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-15 16:27:54,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:54,375 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-15 16:27:54,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:54,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1062572114, now seen corresponding path program 1 times [2024-11-15 16:27:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:54,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589537192] [2024-11-15 16:27:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:54,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619110671] [2024-11-15 16:27:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:54,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:54,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:54,890 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 16:27:54,891 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 16:27:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:55,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-15 16:27:55,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-15 16:27:55,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:55,174 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589537192] [2024-11-15 16:27:55,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619110671] [2024-11-15 16:27:55,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619110671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-15 16:27:55,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162074664] [2024-11-15 16:27:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:55,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-15 16:27:55,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-15 16:27:55,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:27:55,196 INFO L87 Difference]: Start difference. First operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:55,229 INFO L93 Difference]: Finished difference Result 130 states and 186 transitions. [2024-11-15 16:27:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 16:27:55,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-15 16:27:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:55,248 INFO L225 Difference]: With dead ends: 130 [2024-11-15 16:27:55,249 INFO L226 Difference]: Without dead ends: 64 [2024-11-15 16:27:55,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 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 16:27:55,257 INFO L432 NwaCegarLoop]: 88 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, 88 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 16:27:55,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:55,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-15 16:27:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-15 16:27:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.288888888888889) internal successors, (58), 46 states have internal predecessors, (58), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-15 16:27:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2024-11-15 16:27:55,293 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 68 [2024-11-15 16:27:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:55,294 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2024-11-15 16:27:55,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2024-11-15 16:27:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-15 16:27:55,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:55,297 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-15 16:27:55,332 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 16:27:55,500 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 16:27:55,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:55,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:55,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1946087212, now seen corresponding path program 1 times [2024-11-15 16:27:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:55,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518966029] [2024-11-15 16:27:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:55,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:55,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:55,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19588996] [2024-11-15 16:27:55,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:55,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:55,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:55,622 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 16:27:55,623 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 16:27:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:55,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:27:55,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-15 16:27:55,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:55,827 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:55,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518966029] [2024-11-15 16:27:55,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:55,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19588996] [2024-11-15 16:27:55,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19588996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:55,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:55,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743040558] [2024-11-15 16:27:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:55,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:55,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:55,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:55,831 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-15 16:27:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:55,884 INFO L93 Difference]: Finished difference Result 116 states and 154 transitions. [2024-11-15 16:27:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:55,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-15 16:27:55,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:55,892 INFO L225 Difference]: With dead ends: 116 [2024-11-15 16:27:55,892 INFO L226 Difference]: Without dead ends: 66 [2024-11-15 16:27:55,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 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 16:27:55,896 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:55,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-15 16:27:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-15 16:27:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 48 states have internal predecessors, (59), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-15 16:27:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2024-11-15 16:27:55,910 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 68 [2024-11-15 16:27:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:55,943 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2024-11-15 16:27:55,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-15 16:27:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2024-11-15 16:27:55,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-15 16:27:55,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:55,945 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-15 16:27:55,971 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 16:27:56,145 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 16:27:56,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:56,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:56,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1195332088, now seen corresponding path program 1 times [2024-11-15 16:27:56,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:56,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856724753] [2024-11-15 16:27:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:56,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:56,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:56,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601763990] [2024-11-15 16:27:56,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:56,304 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 16:27:56,315 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 16:27:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:56,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:27:56,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:27:56,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:56,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856724753] [2024-11-15 16:27:56,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601763990] [2024-11-15 16:27:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601763990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:56,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:56,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:56,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949172576] [2024-11-15 16:27:56,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:56,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:56,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:56,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:56,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:56,692 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:56,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:56,808 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2024-11-15 16:27:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:56,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-15 16:27:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:56,811 INFO L225 Difference]: With dead ends: 123 [2024-11-15 16:27:56,811 INFO L226 Difference]: Without dead ends: 71 [2024-11-15 16:27:56,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 16:27:56,812 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 21 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:56,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 300 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-15 16:27:56,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-11-15 16:27:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 51 states have internal predecessors, (61), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:27:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-11-15 16:27:56,823 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 70 [2024-11-15 16:27:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:56,824 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-11-15 16:27:56,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-11-15 16:27:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-15 16:27:56,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:56,828 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:56,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:57,028 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 16:27:57,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:57,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:57,030 INFO L85 PathProgramCache]: Analyzing trace with hash -316025515, now seen corresponding path program 1 times [2024-11-15 16:27:57,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:57,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581321125] [2024-11-15 16:27:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:57,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:57,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:57,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734782684] [2024-11-15 16:27:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:57,138 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 16:27:57,139 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 16:27:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:57,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-15 16:27:57,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:27:57,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:57,532 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:57,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581321125] [2024-11-15 16:27:57,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:57,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734782684] [2024-11-15 16:27:57,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734782684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:57,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:57,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:57,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919849999] [2024-11-15 16:27:57,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:57,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:57,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:57,542 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:57,829 INFO L93 Difference]: Finished difference Result 135 states and 183 transitions. [2024-11-15 16:27:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-15 16:27:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-15 16:27:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:57,831 INFO L225 Difference]: With dead ends: 135 [2024-11-15 16:27:57,831 INFO L226 Difference]: Without dead ends: 80 [2024-11-15 16:27:57,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-15 16:27:57,833 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:57,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 354 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:27:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-15 16:27:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 71. [2024-11-15 16:27:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:27:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2024-11-15 16:27:57,844 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 72 [2024-11-15 16:27:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:57,844 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2024-11-15 16:27:57,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2024-11-15 16:27:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:57,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:57,846 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-15 16:27:57,865 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 16:27:58,049 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 16:27:58,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:58,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1928092350, now seen corresponding path program 1 times [2024-11-15 16:27:58,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:58,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543571419] [2024-11-15 16:27:58,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:58,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:58,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:58,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365467267] [2024-11-15 16:27:58,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:58,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:58,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:58,092 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 16:27:58,099 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 16:27:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:58,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-15 16:27:58,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-15 16:27:58,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:58,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:58,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543571419] [2024-11-15 16:27:58,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:58,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365467267] [2024-11-15 16:27:58,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365467267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:58,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:58,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-15 16:27:58,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606571370] [2024-11-15 16:27:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:58,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-15 16:27:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-15 16:27:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:27:58,344 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:58,383 INFO L93 Difference]: Finished difference Result 132 states and 182 transitions. [2024-11-15 16:27:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-15 16:27:58,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-15 16:27:58,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:58,388 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:27:58,388 INFO L226 Difference]: Without dead ends: 75 [2024-11-15 16:27:58,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 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 16:27:58,389 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 2 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 154 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 16:27:58,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 154 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:58,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-15 16:27:58,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2024-11-15 16:27:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:27:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2024-11-15 16:27:58,395 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 73 [2024-11-15 16:27:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:58,396 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2024-11-15 16:27:58,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:27:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2024-11-15 16:27:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-15 16:27:58,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:58,397 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:58,422 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 16:27:58,598 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 16:27:58,598 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:58,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash 137287748, now seen corresponding path program 1 times [2024-11-15 16:27:58,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:58,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970125878] [2024-11-15 16:27:58,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:58,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:58,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666474057] [2024-11-15 16:27:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:58,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:58,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:58,700 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 16:27:58,702 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 16:27:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:58,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:27:58,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:27:58,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:58,935 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:58,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970125878] [2024-11-15 16:27:58,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:58,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666474057] [2024-11-15 16:27:58,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666474057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:58,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:58,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160983495] [2024-11-15 16:27:58,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:58,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:58,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:58,938 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:27:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:58,974 INFO L93 Difference]: Finished difference Result 123 states and 163 transitions. [2024-11-15 16:27:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:58,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2024-11-15 16:27:58,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:58,975 INFO L225 Difference]: With dead ends: 123 [2024-11-15 16:27:58,975 INFO L226 Difference]: Without dead ends: 72 [2024-11-15 16:27:58,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 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 16:27:58,976 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:58,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-15 16:27:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-15 16:27:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-15 16:27:58,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2024-11-15 16:27:58,987 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 81 [2024-11-15 16:27:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:58,987 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2024-11-15 16:27:58,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:27:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2024-11-15 16:27:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-15 16:27:58,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:58,988 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:59,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:59,188 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 16:27:59,189 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:59,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 416892704, now seen corresponding path program 1 times [2024-11-15 16:27:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:59,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209313986] [2024-11-15 16:27:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:59,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:59,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:59,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505737466] [2024-11-15 16:27:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:59,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:59,273 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 16:27:59,275 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 16:27:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:59,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-15 16:27:59,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-15 16:27:59,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:59,497 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209313986] [2024-11-15 16:27:59,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505737466] [2024-11-15 16:27:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505737466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:59,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:59,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:59,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681659881] [2024-11-15 16:27:59,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:59,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:59,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:59,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:59,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:59,498 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:27:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:59,602 INFO L93 Difference]: Finished difference Result 132 states and 171 transitions. [2024-11-15 16:27:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-11-15 16:27:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:59,604 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:27:59,604 INFO L226 Difference]: Without dead ends: 74 [2024-11-15 16:27:59,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 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 16:27:59,605 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 22 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:59,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 363 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:59,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-15 16:27:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2024-11-15 16:27:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 54 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-15 16:27:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2024-11-15 16:27:59,611 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 83 [2024-11-15 16:27:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:59,612 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-11-15 16:27:59,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:27:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2024-11-15 16:27:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-15 16:27:59,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:59,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:59,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:59,813 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 16:27:59,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:59,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1552562003, now seen corresponding path program 1 times [2024-11-15 16:27:59,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368003953] [2024-11-15 16:27:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:59,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70600972] [2024-11-15 16:27:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:59,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:59,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:59,851 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 16:27:59,852 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 16:28:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:00,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 16:28:00,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-15 16:28:00,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:00,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:00,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368003953] [2024-11-15 16:28:00,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:00,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70600972] [2024-11-15 16:28:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70600972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:00,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:00,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-15 16:28:00,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595490592] [2024-11-15 16:28:00,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:00,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-15 16:28:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-15 16:28:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:28:00,132 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:28:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:00,320 INFO L93 Difference]: Finished difference Result 132 states and 170 transitions. [2024-11-15 16:28:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-15 16:28:00,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2024-11-15 16:28:00,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:00,321 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:28:00,321 INFO L226 Difference]: Without dead ends: 73 [2024-11-15 16:28:00,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 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 16:28:00,322 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 31 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:00,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 408 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:28:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-15 16:28:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2024-11-15 16:28:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.25) internal successors, (60), 50 states have internal predecessors, (60), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-15 16:28:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2024-11-15 16:28:00,327 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 85 [2024-11-15 16:28:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:00,327 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2024-11-15 16:28:00,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:28:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-11-15 16:28:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-15 16:28:00,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:00,328 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 16:28:00,351 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 16:28:00,528 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 16:28:00,529 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:00,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 572959972, now seen corresponding path program 2 times [2024-11-15 16:28:00,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:00,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192763031] [2024-11-15 16:28:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:00,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:00,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797583098] [2024-11-15 16:28:00,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-15 16:28:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:00,566 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 16:28:00,567 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 16:28:00,695 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-15 16:28:00,696 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 16:28:00,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:28:00,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-15 16:28:00,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:00,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:00,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192763031] [2024-11-15 16:28:00,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:00,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797583098] [2024-11-15 16:28:00,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797583098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:00,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:00,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:28:00,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479196189] [2024-11-15 16:28:00,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:00,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:28:00,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:00,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:28:00,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:28:00,724 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-15 16:28:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:00,752 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2024-11-15 16:28:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:28:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 94 [2024-11-15 16:28:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:00,753 INFO L225 Difference]: With dead ends: 76 [2024-11-15 16:28:00,753 INFO L226 Difference]: Without dead ends: 74 [2024-11-15 16:28:00,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:28:00,754 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 3 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:00,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 387 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:28:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-15 16:28:00,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2024-11-15 16:28:00,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 53 states have internal predecessors, (63), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-15 16:28:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-11-15 16:28:00,758 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 94 [2024-11-15 16:28:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:00,759 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-11-15 16:28:00,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-15 16:28:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-11-15 16:28:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-15 16:28:00,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:00,760 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-15 16:28:00,774 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 16:28:00,963 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 16:28:00,963 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:00,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash -122650332, now seen corresponding path program 1 times [2024-11-15 16:28:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857726656] [2024-11-15 16:28:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:01,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:01,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267900669] [2024-11-15 16:28:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:01,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:01,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:01,036 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 16:28:01,045 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 16:28:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:01,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:28:01,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-15 16:28:01,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:01,400 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857726656] [2024-11-15 16:28:01,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267900669] [2024-11-15 16:28:01,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267900669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:01,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:01,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:28:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681851512] [2024-11-15 16:28:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:01,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:28:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:28:01,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:28:01,405 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-15 16:28:01,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:01,460 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2024-11-15 16:28:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:28:01,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 100 [2024-11-15 16:28:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:01,462 INFO L225 Difference]: With dead ends: 135 [2024-11-15 16:28:01,462 INFO L226 Difference]: Without dead ends: 76 [2024-11-15 16:28:01,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 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 16:28:01,462 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:01,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:28:01,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-15 16:28:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-15 16:28:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 56 states have internal predecessors, (65), 14 states have call successors, (14), 6 states have call predecessors, (14), 8 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) [2024-11-15 16:28:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2024-11-15 16:28:01,472 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 100 [2024-11-15 16:28:01,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:01,523 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2024-11-15 16:28:01,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-15 16:28:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2024-11-15 16:28:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-15 16:28:01,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:01,524 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:01,548 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 16:28:01,724 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 16:28:01,725 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:01,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash -111578185, now seen corresponding path program 1 times [2024-11-15 16:28:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:01,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827888938] [2024-11-15 16:28:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:01,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:01,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:01,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229630065] [2024-11-15 16:28:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:01,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:01,786 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 16:28:01,790 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 16:28:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:01,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:28:01,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:28:02,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:02,013 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827888938] [2024-11-15 16:28:02,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229630065] [2024-11-15 16:28:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229630065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:02,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:02,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:28:02,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131111886] [2024-11-15 16:28:02,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:02,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:28:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:28:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:28:02,017 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:28:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:02,057 INFO L93 Difference]: Finished difference Result 131 states and 168 transitions. [2024-11-15 16:28:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:28:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2024-11-15 16:28:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:02,058 INFO L225 Difference]: With dead ends: 131 [2024-11-15 16:28:02,058 INFO L226 Difference]: Without dead ends: 76 [2024-11-15 16:28:02,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 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 16:28:02,059 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:02,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:28:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-15 16:28:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-15 16:28:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 56 states have internal predecessors, (65), 14 states have call successors, (14), 6 states have call predecessors, (14), 8 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-15 16:28:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2024-11-15 16:28:02,073 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 102 [2024-11-15 16:28:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:02,073 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2024-11-15 16:28:02,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:28:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2024-11-15 16:28:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-15 16:28:02,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:02,074 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:28:02,089 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 16:28:02,275 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 16:28:02,275 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:02,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1048042948, now seen corresponding path program 1 times [2024-11-15 16:28:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:02,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994096241] [2024-11-15 16:28:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:02,323 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:02,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566168626] [2024-11-15 16:28:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:02,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:02,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:02,328 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 16:28:02,339 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 16:28:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:02,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-15 16:28:02,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:02,562 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 16:28:02,568 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 16:28:06,873 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 16:28:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-15 16:28:07,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:28:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 29 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-15 16:28:07,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:07,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994096241] [2024-11-15 16:28:07,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:07,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566168626] [2024-11-15 16:28:07,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566168626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:28:07,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:28:07,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2024-11-15 16:28:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946183550] [2024-11-15 16:28:07,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:28:07,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-15 16:28:07,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-15 16:28:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=199, Unknown=1, NotChecked=28, Total=272 [2024-11-15 16:28:07,406 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 17 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-15 16:28:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:08,300 INFO L93 Difference]: Finished difference Result 180 states and 243 transitions. [2024-11-15 16:28:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:28:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 104 [2024-11-15 16:28:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:08,302 INFO L225 Difference]: With dead ends: 180 [2024-11-15 16:28:08,302 INFO L226 Difference]: Without dead ends: 118 [2024-11-15 16:28:08,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=76, Invalid=347, Unknown=1, NotChecked=38, Total=462 [2024-11-15 16:28:08,303 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 269 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:08,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 639 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 1 Unknown, 269 Unchecked, 0.7s Time] [2024-11-15 16:28:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-15 16:28:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 94. [2024-11-15 16:28:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 72 states have internal predecessors, (87), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-15 16:28:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-15 16:28:08,311 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 104 [2024-11-15 16:28:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:08,311 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-15 16:28:08,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-15 16:28:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-15 16:28:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-15 16:28:08,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:08,312 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-15 16:28:08,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-15 16:28:08,516 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 16:28:08,517 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:08,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1435293188, now seen corresponding path program 1 times [2024-11-15 16:28:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316338624] [2024-11-15 16:28:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:08,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:08,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968595992] [2024-11-15 16:28:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:08,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:08,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:08,555 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 16:28:08,556 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 16:28:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:08,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:28:08,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-15 16:28:08,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:08,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:08,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316338624] [2024-11-15 16:28:08,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:08,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968595992] [2024-11-15 16:28:08,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968595992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:08,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:08,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:28:08,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123134103] [2024-11-15 16:28:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:08,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:28:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:28:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:28:08,741 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:28:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:08,765 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2024-11-15 16:28:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:28:08,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-11-15 16:28:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:08,767 INFO L225 Difference]: With dead ends: 175 [2024-11-15 16:28:08,767 INFO L226 Difference]: Without dead ends: 95 [2024-11-15 16:28:08,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 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 16:28:08,768 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:08,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:28:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-15 16:28:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2024-11-15 16:28:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 72 states have internal predecessors, (86), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-15 16:28:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2024-11-15 16:28:08,774 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 104 [2024-11-15 16:28:08,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:08,775 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2024-11-15 16:28:08,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:28:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2024-11-15 16:28:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-15 16:28:08,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:08,776 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-15 16:28:08,791 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 16:28:08,976 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 16:28:08,976 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:08,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:08,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1308434876, now seen corresponding path program 1 times [2024-11-15 16:28:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219748215] [2024-11-15 16:28:08,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:09,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:09,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121607452] [2024-11-15 16:28:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:09,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:09,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:09,013 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 16:28:09,017 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 16:28:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:09,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:28:09,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-15 16:28:09,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:09,247 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219748215] [2024-11-15 16:28:09,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121607452] [2024-11-15 16:28:09,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121607452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:09,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:09,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:28:09,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224249572] [2024-11-15 16:28:09,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:09,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:28:09,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:09,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:28:09,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:28:09,251 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:28:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:09,269 INFO L93 Difference]: Finished difference Result 174 states and 233 transitions. [2024-11-15 16:28:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:28:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-11-15 16:28:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:09,271 INFO L225 Difference]: With dead ends: 174 [2024-11-15 16:28:09,271 INFO L226 Difference]: Without dead ends: 94 [2024-11-15 16:28:09,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 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 16:28:09,271 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:09,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:28:09,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-15 16:28:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2024-11-15 16:28:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 69 states have internal predecessors, (81), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-15 16:28:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions. [2024-11-15 16:28:09,282 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 104 [2024-11-15 16:28:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:09,283 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions. [2024-11-15 16:28:09,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:28:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions. [2024-11-15 16:28:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-15 16:28:09,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:09,283 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-15 16:28:09,303 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 16:28:09,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:09,489 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:09,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash 81682848, now seen corresponding path program 1 times [2024-11-15 16:28:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357713028] [2024-11-15 16:28:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:09,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:09,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:09,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140020899] [2024-11-15 16:28:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:09,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:09,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:09,532 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:28:09,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-15 16:28:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:09,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-15 16:28:09,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:09,776 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 16:28:09,778 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 16:28:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 35 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-15 16:28:11,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:28:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:28:11,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:11,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357713028] [2024-11-15 16:28:11,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:11,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140020899] [2024-11-15 16:28:11,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140020899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:28:11,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:28:11,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-11-15 16:28:11,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189734115] [2024-11-15 16:28:11,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:28:11,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-15 16:28:11,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:11,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-15 16:28:11,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-15 16:28:11,877 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 19 states have internal predecessors, (132), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-15 16:28:16,441 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 16:28:20,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:25,039 WARN L539 Checker$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 16:28:29,080 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 16:28:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:31,749 INFO L93 Difference]: Finished difference Result 212 states and 263 transitions. [2024-11-15 16:28:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:28:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 19 states have internal predecessors, (132), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 106 [2024-11-15 16:28:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:31,751 INFO L225 Difference]: With dead ends: 212 [2024-11-15 16:28:31,751 INFO L226 Difference]: Without dead ends: 134 [2024-11-15 16:28:31,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-11-15 16:28:31,752 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 64 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 26 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:31,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 978 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 600 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2024-11-15 16:28:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-15 16:28:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2024-11-15 16:28:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.2079207920792079) internal successors, (122), 104 states have internal predecessors, (122), 17 states have call successors, (17), 11 states have call predecessors, (17), 13 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2024-11-15 16:28:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 161 transitions. [2024-11-15 16:28:31,773 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 161 transitions. Word has length 106 [2024-11-15 16:28:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:31,773 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 161 transitions. [2024-11-15 16:28:31,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 19 states have internal predecessors, (132), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-15 16:28:31,773 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 161 transitions. [2024-11-15 16:28:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-15 16:28:31,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:31,774 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:31,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-15 16:28:31,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-15 16:28:31,979 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:31,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash -929434402, now seen corresponding path program 1 times [2024-11-15 16:28:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:31,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019819980] [2024-11-15 16:28:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:31,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:32,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:32,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327319237] [2024-11-15 16:28:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:32,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:32,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:32,016 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 16:28:32,017 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 16:28:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:32,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-15 16:28:32,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:32,337 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 18 treesize of output 7 [2024-11-15 16:28:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:32,350 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 11 treesize of output 1 [2024-11-15 16:28:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-15 16:28:33,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:28:33,712 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019819980] [2024-11-15 16:28:33,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327319237] [2024-11-15 16:28:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327319237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:28:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:28:33,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-15 16:28:33,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592795843] [2024-11-15 16:28:33,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:28:33,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-15 16:28:33,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:33,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-15 16:28:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-15 16:28:33,714 INFO L87 Difference]: Start difference. First operand 132 states and 161 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-15 16:28:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:35,273 INFO L93 Difference]: Finished difference Result 319 states and 392 transitions. [2024-11-15 16:28:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-15 16:28:35,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 106 [2024-11-15 16:28:35,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:35,274 INFO L225 Difference]: With dead ends: 319 [2024-11-15 16:28:35,274 INFO L226 Difference]: Without dead ends: 250 [2024-11-15 16:28:35,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-15 16:28:35,275 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 39 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:35,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 407 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-15 16:28:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-15 16:28:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2024-11-15 16:28:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 191 states have (on average 1.2146596858638743) internal successors, (232), 197 states have internal predecessors, (232), 32 states have call successors, (32), 20 states have call predecessors, (32), 24 states have return successors, (42), 30 states have call predecessors, (42), 30 states have call successors, (42) [2024-11-15 16:28:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 306 transitions. [2024-11-15 16:28:35,294 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 306 transitions. Word has length 106 [2024-11-15 16:28:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:35,294 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 306 transitions. [2024-11-15 16:28:35,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-15 16:28:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 306 transitions. [2024-11-15 16:28:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-15 16:28:35,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:35,296 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-15 16:28:35,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-15 16:28:35,499 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,SelfDestructingSolverStorable15 [2024-11-15 16:28:35,499 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:35,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:35,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1950502756, now seen corresponding path program 1 times [2024-11-15 16:28:35,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645716668] [2024-11-15 16:28:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:35,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:35,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886124845] [2024-11-15 16:28:35,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:35,542 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 16:28:35,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-15 16:28:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:35,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-15 16:28:35,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:35,852 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 16:28:35,857 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 16:28:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-15 16:28:38,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:28:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:28:39,251 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:28:39,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645716668] [2024-11-15 16:28:39,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:28:39,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886124845] [2024-11-15 16:28:39,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886124845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:28:39,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:28:39,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2024-11-15 16:28:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084421032] [2024-11-15 16:28:39,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:28:39,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-15 16:28:39,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-15 16:28:39,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-15 16:28:39,253 INFO L87 Difference]: Start difference. First operand 248 states and 306 transitions. Second operand has 25 states, 25 states have (on average 5.16) internal successors, (129), 23 states have internal predecessors, (129), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-15 16:28:43,285 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 16:28:47,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:28:51,627 WARN L539 Checker$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 16:28:56,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:56,232 INFO L93 Difference]: Finished difference Result 378 states and 468 transitions. [2024-11-15 16:28:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:28:56,233 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 23 states have internal predecessors, (129), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 106 [2024-11-15 16:28:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:56,234 INFO L225 Difference]: With dead ends: 378 [2024-11-15 16:28:56,234 INFO L226 Difference]: Without dead ends: 248 [2024-11-15 16:28:56,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-11-15 16:28:56,236 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 72 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 26 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:56,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 951 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 652 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2024-11-15 16:28:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-15 16:28:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-11-15 16:28:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 197 states have internal predecessors, (230), 32 states have call successors, (32), 20 states have call predecessors, (32), 24 states have return successors, (42), 30 states have call predecessors, (42), 30 states have call successors, (42) [2024-11-15 16:28:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 304 transitions. [2024-11-15 16:28:56,302 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 304 transitions. Word has length 106 [2024-11-15 16:28:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:56,302 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 304 transitions. [2024-11-15 16:28:56,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 23 states have internal predecessors, (129), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-15 16:28:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 304 transitions. [2024-11-15 16:28:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-15 16:28:56,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:56,303 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-15 16:28:56,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-15 16:28:56,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-15 16:28:56,504 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:56,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 350319834, now seen corresponding path program 1 times [2024-11-15 16:28:56,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014354886] [2024-11-15 16:28:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:56,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667748381] [2024-11-15 16:28:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:56,571 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:28:56,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-15 16:28:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:56,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-15 16:28:56,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:56,860 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 16:28:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 28 proven. 34 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-15 16:28:59,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:29:00,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:29:00,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014354886] [2024-11-15 16:29:00,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:29:00,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667748381] [2024-11-15 16:29:00,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667748381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 16:29:00,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [521388099] [2024-11-15 16:29:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:29:00,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-15 16:29:00,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-15 16:29:00,910 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-15 16:29:00,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-15 16:29:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:29:01,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-15 16:29:01,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:29:01,843 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 11 treesize of output 7 [2024-11-15 16:29:01,864 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 20 treesize of output 9 [2024-11-15 16:29:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 29 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-15 16:29:14,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:29:16,545 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-15 16:29:16,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 93 [2024-11-15 16:29:16,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 79 [2024-11-15 16:29:16,599 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 100 treesize of output 94 [2024-11-15 16:29:16,623 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 60 treesize of output 58 [2024-11-15 16:29:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 12 proven. 35 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-15 16:29:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [521388099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:29:16,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-15 16:29:16,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21, 15] total 45 [2024-11-15 16:29:16,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071546372] [2024-11-15 16:29:16,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-15 16:29:16,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-15 16:29:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:29:16,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-15 16:29:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1859, Unknown=0, NotChecked=0, Total=2070 [2024-11-15 16:29:16,881 INFO L87 Difference]: Start difference. First operand 248 states and 304 transitions. Second operand has 45 states, 45 states have (on average 4.377777777777778) internal successors, (197), 42 states have internal predecessors, (197), 18 states have call successors, (30), 4 states have call predecessors, (30), 10 states have return successors, (29), 16 states have call predecessors, (29), 18 states have call successors, (29) [2024-11-15 16:29:21,221 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]