/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_push_back_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-tmp.fs.smtinterpol-bv-eval-3dddfdf-m [2024-11-15 16:27:29,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-15 16:27:29,990 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 16:27:29,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-15 16:27:29,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-15 16:27:30,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-15 16:27:30,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-15 16:27:30,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-15 16:27:30,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-15 16:27:30,030 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-15 16:27:30,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-15 16:27:30,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-15 16:27:30,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-15 16:27:30,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-15 16:27:30,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-15 16:27:30,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-15 16:27:30,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-15 16:27:30,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-15 16:27:30,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-15 16:27:30,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-15 16:27:30,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-15 16:27:30,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-15 16:27:30,036 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-15 16:27:30,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-15 16:27:30,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-15 16:27:30,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-15 16:27:30,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-15 16:27:30,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-15 16:27:30,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-15 16:27:30,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-15 16:27:30,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-15 16:27:30,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:30,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-15 16:27:30,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-15 16:27:30,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-15 16:27:30,039 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-15 16:27:30,039 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-15 16:27:30,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-15 16:27:30,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-15 16:27:30,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-15 16:27:30,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-15 16:27:30,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-15 16:27:30,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-15 16:27:30,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-15 16:27:30,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-15 16:27:30,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-15 16:27:30,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-15 16:27:30,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_back_harness.i [2024-11-15 16:27:31,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-15 16:27:32,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-15 16:27:32,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_back_harness.i [2024-11-15 16:27:32,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615308a17/b54a264645004f2b84755bb3745592fc/FLAGc97bda53d [2024-11-15 16:27:32,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615308a17/b54a264645004f2b84755bb3745592fc [2024-11-15 16:27:32,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-15 16:27:32,266 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-15 16:27:32,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:32,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-15 16:27:32,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-15 16:27:32,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:32" (1/1) ... [2024-11-15 16:27:32,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac8731f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:32, skipping insertion in model container [2024-11-15 16:27:32,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:27:32" (1/1) ... [2024-11-15 16:27:32,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:32,660 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_push_back_harness.i[4499,4512] [2024-11-15 16:27:32,667 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_push_back_harness.i[4559,4572] [2024-11-15 16:27:33,156 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 16:27:33,247 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 16:27:33,248 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 16:27:33,248 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 16:27:33,260 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 16:27:33,262 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,265 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,266 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,266 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 16:27:33,267 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,267 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,272 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 16:27:33,273 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 16:27:33,278 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 16:27:33,279 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 16:27:33,287 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,288 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 16:27:33,288 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,288 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 16:27:33,290 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,290 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 16:27:33,290 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,291 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 16:27:33,292 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,293 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 16:27:33,293 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,293 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 16:27:33,294 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,294 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,523 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 16:27:33,524 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 16:27:33,524 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 16:27:33,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:27:33,634 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 16:27:33,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:33,700 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-15 16:27:33,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:27:33,746 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_push_back_harness.i[4499,4512] [2024-11-15 16:27:33,747 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_push_back_harness.i[4559,4572] [2024-11-15 16:27:33,780 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 16:27:33,804 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 16:27:33,805 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 16:27:33,810 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 16:27:33,823 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 16:27:33,824 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,825 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,825 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,826 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 16:27:33,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,831 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 16:27:33,831 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 16:27:33,832 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 16:27:33,833 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 16:27:33,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,842 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 16:27:33,842 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,842 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 16:27:33,843 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,844 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 16:27:33,844 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,844 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 16:27:33,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,846 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 16:27:33,846 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,846 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 16:27:33,846 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,847 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:33,896 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 16:27:33,897 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 16:27:33,902 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 16:27:33,902 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 16:27:33,943 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 16:27:33,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:33,959 INFO L200 MainTranslator]: Completed pre-run [2024-11-15 16:27:33,977 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_push_back_harness.i[4499,4512] [2024-11-15 16:27:33,977 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_push_back_harness.i[4559,4572] [2024-11-15 16:27:34,012 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,013 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,013 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,014 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,014 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,020 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,020 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,021 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,021 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,021 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,022 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,022 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,022 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:27:34,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:27:34,326 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-15 16:27:34,340 INFO L204 MainTranslator]: Completed translation [2024-11-15 16:27:34,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34 WrapperNode [2024-11-15 16:27:34,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-15 16:27:34,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:34,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-15 16:27:34,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-15 16:27:34,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,477 INFO L138 Inliner]: procedures = 687, calls = 1046, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 152 [2024-11-15 16:27:34,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-15 16:27:34,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-15 16:27:34,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-15 16:27:34,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-15 16:27:34,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,535 INFO L175 MemorySlicer]: Split 35 memory accesses to 3 slices as follows [2, 28, 5]. 80 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 10 writes are split as follows [0, 10, 0]. [2024-11-15 16:27:34,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-15 16:27:34,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-15 16:27:34,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-15 16:27:34,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-15 16:27:34,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (1/1) ... [2024-11-15 16:27:34,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:27:34,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:34,631 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 16:27:34,637 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 16:27:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-15 16:27:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-15 16:27:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-15 16:27:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-15 16:27:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-15 16:27:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-15 16:27:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:27:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-15 16:27:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-15 16:27:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2024-11-15 16:27:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-15 16:27:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-15 16:27:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-15 16:27:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-15 16:27:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-15 16:27:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-15 16:27:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-15 16:27:34,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-15 16:27:34,980 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-15 16:27:35,514 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-15 16:27:35,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-15 16:27:35,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-15 16:27:35,533 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-15 16:27:35,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:35 BoogieIcfgContainer [2024-11-15 16:27:35,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-15 16:27:35,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-15 16:27:35,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-15 16:27:35,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-15 16:27:35,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 04:27:32" (1/3) ... [2024-11-15 16:27:35,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aae99a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:35, skipping insertion in model container [2024-11-15 16:27:35,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:27:34" (2/3) ... [2024-11-15 16:27:35,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aae99a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:27:35, skipping insertion in model container [2024-11-15 16:27:35,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:27:35" (3/3) ... [2024-11-15 16:27:35,540 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2024-11-15 16:27:35,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-15 16:27:35,556 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-15 16:27:35,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-15 16:27:35,621 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;@32093796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 16:27:35,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-15 16:27:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-15 16:27:35,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:35,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:35,633 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:35,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:35,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash 524704703, now seen corresponding path program 1 times [2024-11-15 16:27:35,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:35,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948028120] [2024-11-15 16:27:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:35,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:36,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:36,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593430344] [2024-11-15 16:27:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:36,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:36,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:36,050 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 16:27:36,052 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 16:27:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:36,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-15 16:27:36,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-15 16:27:36,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:36,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948028120] [2024-11-15 16:27:36,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593430344] [2024-11-15 16:27:36,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593430344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:36,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:36,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-15 16:27:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496896793] [2024-11-15 16:27:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:36,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-15 16:27:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-15 16:27:36,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:27:36,384 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:36,431 INFO L93 Difference]: Finished difference Result 196 states and 291 transitions. [2024-11-15 16:27:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 16:27:36,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-15 16:27:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:36,443 INFO L225 Difference]: With dead ends: 196 [2024-11-15 16:27:36,443 INFO L226 Difference]: Without dead ends: 97 [2024-11-15 16:27:36,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 16:27:36,453 INFO L432 NwaCegarLoop]: 136 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, 136 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 16:27:36,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-15 16:27:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-15 16:27:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 62 states have internal predecessors, (76), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-15 16:27:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2024-11-15 16:27:36,511 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 73 [2024-11-15 16:27:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:36,512 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2024-11-15 16:27:36,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:36,512 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2024-11-15 16:27:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:36,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:36,515 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:36,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:36,719 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 16:27:36,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:36,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -569763587, now seen corresponding path program 1 times [2024-11-15 16:27:36,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:36,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269817990] [2024-11-15 16:27:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:36,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:36,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:36,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769405161] [2024-11-15 16:27:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:36,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:36,879 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 16:27:36,880 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 16:27:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:37,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:27:37,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:37,153 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:37,153 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:37,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269817990] [2024-11-15 16:27:37,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:37,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769405161] [2024-11-15 16:27:37,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769405161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:37,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:37,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:27:37,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787159041] [2024-11-15 16:27:37,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:37,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:27:37,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:37,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:27:37,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:37,156 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:37,207 INFO L93 Difference]: Finished difference Result 183 states and 252 transitions. [2024-11-15 16:27:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:27:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-15 16:27:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:37,210 INFO L225 Difference]: With dead ends: 183 [2024-11-15 16:27:37,210 INFO L226 Difference]: Without dead ends: 100 [2024-11-15 16:27:37,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:37,212 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:37,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-15 16:27:37,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2024-11-15 16:27:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-15 16:27:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2024-11-15 16:27:37,226 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 73 [2024-11-15 16:27:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:37,227 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2024-11-15 16:27:37,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2024-11-15 16:27:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:37,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:37,230 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:37,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:37,431 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 16:27:37,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:37,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash -125862913, now seen corresponding path program 1 times [2024-11-15 16:27:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:37,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678439619] [2024-11-15 16:27:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:37,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:37,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:37,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138976589] [2024-11-15 16:27:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:37,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:37,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:37,554 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 16:27:37,555 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 16:27:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:37,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:27:37,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:37,776 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:37,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:37,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:37,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678439619] [2024-11-15 16:27:37,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:37,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138976589] [2024-11-15 16:27:37,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138976589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:37,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:37,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:27:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693783489] [2024-11-15 16:27:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:37,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:27:37,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:27:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:37,778 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:37,818 INFO L93 Difference]: Finished difference Result 187 states and 256 transitions. [2024-11-15 16:27:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:27:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-15 16:27:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:37,824 INFO L225 Difference]: With dead ends: 187 [2024-11-15 16:27:37,825 INFO L226 Difference]: Without dead ends: 102 [2024-11-15 16:27:37,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:37,830 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:37,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:37,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-15 16:27:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-15 16:27:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 66 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-15 16:27:37,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 135 transitions. [2024-11-15 16:27:37,844 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 135 transitions. Word has length 73 [2024-11-15 16:27:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:37,845 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 135 transitions. [2024-11-15 16:27:37,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 135 transitions. [2024-11-15 16:27:37,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:37,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:37,846 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:37,867 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 16:27:38,047 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 16:27:38,048 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:38,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2140518273, now seen corresponding path program 1 times [2024-11-15 16:27:38,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:38,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696865080] [2024-11-15 16:27:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:38,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:38,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:38,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922509203] [2024-11-15 16:27:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:38,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:38,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:38,135 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 16:27:38,136 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 16:27:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:38,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:27:38,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:38,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:38,354 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696865080] [2024-11-15 16:27:38,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922509203] [2024-11-15 16:27:38,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922509203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:38,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:38,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:27:38,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079508668] [2024-11-15 16:27:38,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:38,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:27:38,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:38,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:27:38,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:38,356 INFO L87 Difference]: Start difference. First operand 101 states and 135 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:38,391 INFO L93 Difference]: Finished difference Result 191 states and 261 transitions. [2024-11-15 16:27:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:27:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-15 16:27:38,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:38,397 INFO L225 Difference]: With dead ends: 191 [2024-11-15 16:27:38,397 INFO L226 Difference]: Without dead ends: 104 [2024-11-15 16:27:38,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:27:38,400 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:38,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 378 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-15 16:27:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-15 16:27:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 69 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-15 16:27:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2024-11-15 16:27:38,416 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2024-11-15 16:27:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:38,417 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2024-11-15 16:27:38,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:38,421 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2024-11-15 16:27:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:38,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:38,422 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:38,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:38,623 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 16:27:38,623 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:38,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2124999555, now seen corresponding path program 1 times [2024-11-15 16:27:38,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:38,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827293634] [2024-11-15 16:27:38,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:38,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:38,681 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:38,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885159441] [2024-11-15 16:27:38,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:38,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:38,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:38,684 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 16:27:38,685 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 16:27:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:38,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-15 16:27:38,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:39,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:39,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827293634] [2024-11-15 16:27:39,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885159441] [2024-11-15 16:27:39,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885159441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:39,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:39,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171039452] [2024-11-15 16:27:39,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:39,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:39,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:39,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:39,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:39,049 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:39,162 INFO L93 Difference]: Finished difference Result 201 states and 268 transitions. [2024-11-15 16:27:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-15 16:27:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:39,169 INFO L225 Difference]: With dead ends: 201 [2024-11-15 16:27:39,169 INFO L226 Difference]: Without dead ends: 102 [2024-11-15 16:27:39,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:39,170 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 12 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:39,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 582 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-15 16:27:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-15 16:27:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 67 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-15 16:27:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 135 transitions. [2024-11-15 16:27:39,190 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 135 transitions. Word has length 73 [2024-11-15 16:27:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:39,190 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 135 transitions. [2024-11-15 16:27:39,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 135 transitions. [2024-11-15 16:27:39,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:27:39,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:39,196 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:39,216 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 16:27:39,396 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 16:27:39,397 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:39,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1956548997, now seen corresponding path program 1 times [2024-11-15 16:27:39,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:39,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480529508] [2024-11-15 16:27:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:39,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:39,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355119989] [2024-11-15 16:27:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:39,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:39,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:39,480 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 16:27:39,482 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 16:27:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:39,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:27:39,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-15 16:27:39,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:39,760 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:39,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480529508] [2024-11-15 16:27:39,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:39,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355119989] [2024-11-15 16:27:39,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355119989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:39,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:39,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:27:39,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977053139] [2024-11-15 16:27:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:39,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:27:39,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:27:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:27:39,765 INFO L87 Difference]: Start difference. First operand 102 states and 135 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:39,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:39,836 INFO L93 Difference]: Finished difference Result 192 states and 257 transitions. [2024-11-15 16:27:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:27:39,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-15 16:27:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:39,840 INFO L225 Difference]: With dead ends: 192 [2024-11-15 16:27:39,840 INFO L226 Difference]: Without dead ends: 104 [2024-11-15 16:27:39,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 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 16:27:39,841 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:39,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-15 16:27:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-15 16:27:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-15 16:27:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2024-11-15 16:27:39,856 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2024-11-15 16:27:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:39,856 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2024-11-15 16:27:39,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2024-11-15 16:27:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-15 16:27:39,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:39,858 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:39,876 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 16:27:40,058 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 16:27:40,059 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:40,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1237560575, now seen corresponding path program 1 times [2024-11-15 16:27:40,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:40,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292494384] [2024-11-15 16:27:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:40,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:40,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:40,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718700070] [2024-11-15 16:27:40,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:40,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:40,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:40,142 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 16:27:40,143 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 16:27:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:40,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-15 16:27:40,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:40,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:40,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:40,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292494384] [2024-11-15 16:27:40,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:40,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718700070] [2024-11-15 16:27:40,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718700070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:40,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:40,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:40,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217616083] [2024-11-15 16:27:40,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:40,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:40,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:40,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:40,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:40,467 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:40,630 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2024-11-15 16:27:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:40,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-11-15 16:27:40,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:40,632 INFO L225 Difference]: With dead ends: 199 [2024-11-15 16:27:40,632 INFO L226 Difference]: Without dead ends: 106 [2024-11-15 16:27:40,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 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 16:27:40,633 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 24 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:40,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 643 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-15 16:27:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-11-15 16:27:40,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 69 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-15 16:27:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 137 transitions. [2024-11-15 16:27:40,646 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 137 transitions. Word has length 75 [2024-11-15 16:27:40,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:40,646 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 137 transitions. [2024-11-15 16:27:40,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 137 transitions. [2024-11-15 16:27:40,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-15 16:27:40,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:40,648 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:40,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-15 16:27:40,848 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 16:27:40,849 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:40,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1187141198, now seen corresponding path program 1 times [2024-11-15 16:27:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224895751] [2024-11-15 16:27:40,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:40,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:40,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:40,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736143384] [2024-11-15 16:27:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:40,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:40,913 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 16:27:40,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-15 16:27:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:41,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 16:27:41,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:41,253 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:41,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:41,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224895751] [2024-11-15 16:27:41,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:41,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736143384] [2024-11-15 16:27:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736143384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:41,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:41,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-15 16:27:41,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925711246] [2024-11-15 16:27:41,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:41,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-15 16:27:41,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:41,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-15 16:27:41,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:27:41,256 INFO L87 Difference]: Start difference. First operand 104 states and 137 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:41,468 INFO L93 Difference]: Finished difference Result 205 states and 274 transitions. [2024-11-15 16:27:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-15 16:27:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2024-11-15 16:27:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:41,470 INFO L225 Difference]: With dead ends: 205 [2024-11-15 16:27:41,470 INFO L226 Difference]: Without dead ends: 111 [2024-11-15 16:27:41,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-15 16:27:41,471 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 33 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:41,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 739 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-15 16:27:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2024-11-15 16:27:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 70 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-15 16:27:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 138 transitions. [2024-11-15 16:27:41,480 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 138 transitions. Word has length 77 [2024-11-15 16:27:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:41,481 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 138 transitions. [2024-11-15 16:27:41,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:27:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2024-11-15 16:27:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-15 16:27:41,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:41,486 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:41,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:41,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-15 16:27:41,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:41,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1548809988, now seen corresponding path program 1 times [2024-11-15 16:27:41,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:41,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310582790] [2024-11-15 16:27:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:41,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:41,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:41,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633304726] [2024-11-15 16:27:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:41,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:41,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:41,755 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:41,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-15 16:27:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:41,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-15 16:27:41,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:42,000 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:42,000 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:42,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310582790] [2024-11-15 16:27:42,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:42,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633304726] [2024-11-15 16:27:42,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633304726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:42,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:42,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-15 16:27:42,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762910068] [2024-11-15 16:27:42,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:42,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-15 16:27:42,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-15 16:27:42,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:27:42,004 INFO L87 Difference]: Start difference. First operand 105 states and 138 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:42,032 INFO L93 Difference]: Finished difference Result 200 states and 269 transitions. [2024-11-15 16:27:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-15 16:27:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2024-11-15 16:27:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:42,035 INFO L225 Difference]: With dead ends: 200 [2024-11-15 16:27:42,036 INFO L226 Difference]: Without dead ends: 109 [2024-11-15 16:27:42,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 16:27:42,037 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 2 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:42,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 247 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:27:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-15 16:27:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-11-15 16:27:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 71 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-15 16:27:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2024-11-15 16:27:42,046 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 78 [2024-11-15 16:27:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:42,047 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2024-11-15 16:27:42,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-15 16:27:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2024-11-15 16:27:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-15 16:27:42,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:42,049 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:42,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-15 16:27:42,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:42,250 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:42,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1185344546, now seen corresponding path program 1 times [2024-11-15 16:27:42,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:42,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848927670] [2024-11-15 16:27:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:42,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:42,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:42,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274853347] [2024-11-15 16:27:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:42,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:42,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:42,309 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:42,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-15 16:27:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:42,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:27:42,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-15 16:27:42,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:27:42,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:42,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848927670] [2024-11-15 16:27:42,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:42,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274853347] [2024-11-15 16:27:42,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274853347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:27:42,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:27:42,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:27:42,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090962528] [2024-11-15 16:27:42,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:27:42,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:27:42,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:42,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:27:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:42,602 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-15 16:27:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:42,674 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2024-11-15 16:27:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:27:42,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2024-11-15 16:27:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:42,675 INFO L225 Difference]: With dead ends: 201 [2024-11-15 16:27:42,675 INFO L226 Difference]: Without dead ends: 109 [2024-11-15 16:27:42,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:27:42,677 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:42,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:27:42,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-15 16:27:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2024-11-15 16:27:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-15 16:27:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2024-11-15 16:27:42,692 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 86 [2024-11-15 16:27:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:42,692 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2024-11-15 16:27:42,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-15 16:27:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2024-11-15 16:27:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-15 16:27:42,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:42,694 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:42,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-15 16:27:42,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-15 16:27:42,894 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:42,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash 172862485, now seen corresponding path program 1 times [2024-11-15 16:27:42,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:42,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968907357] [2024-11-15 16:27:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:42,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:42,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:42,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938414729] [2024-11-15 16:27:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:42,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:42,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:42,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:42,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-15 16:27:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:43,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-15 16:27:43,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:47,601 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#1.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#1.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|) (_ bv0 64))))) is different from true [2024-11-15 16:27:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-15 16:27:47,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:27:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-15 16:27:48,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968907357] [2024-11-15 16:27:48,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938414729] [2024-11-15 16:27:48,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938414729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:27:48,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:27:48,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2024-11-15 16:27:48,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839950973] [2024-11-15 16:27:48,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:27:48,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-15 16:27:48,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:27:48,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-15 16:27:48,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=171, Unknown=1, NotChecked=26, Total=240 [2024-11-15 16:27:48,238 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-15 16:27:50,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:27:50,988 INFO L93 Difference]: Finished difference Result 236 states and 321 transitions. [2024-11-15 16:27:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-15 16:27:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 88 [2024-11-15 16:27:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:27:50,990 INFO L225 Difference]: With dead ends: 236 [2024-11-15 16:27:50,991 INFO L226 Difference]: Without dead ends: 143 [2024-11-15 16:27:50,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=62, Invalid=247, Unknown=1, NotChecked=32, Total=342 [2024-11-15 16:27:50,992 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 38 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 298 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-15 16:27:50,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1244 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 413 Invalid, 6 Unknown, 298 Unchecked, 2.6s Time] [2024-11-15 16:27:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-15 16:27:51,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 117. [2024-11-15 16:27:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 29 states have call successors, (29), 8 states have call predecessors, (29), 9 states have return successors, (31), 28 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-15 16:27:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 154 transitions. [2024-11-15 16:27:51,004 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 154 transitions. Word has length 88 [2024-11-15 16:27:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:27:51,004 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 154 transitions. [2024-11-15 16:27:51,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-15 16:27:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 154 transitions. [2024-11-15 16:27:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-15 16:27:51,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:27:51,005 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:27:51,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-15 16:27:51,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-15 16:27:51,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:27:51,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:27:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash 759251201, now seen corresponding path program 1 times [2024-11-15 16:27:51,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:27:51,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228424048] [2024-11-15 16:27:51,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:51,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:27:51,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:27:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022365729] [2024-11-15 16:27:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:51,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:27:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:27:51,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:27:51,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-15 16:27:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:51,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-15 16:27:51,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:51,629 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 10 treesize of output 8 [2024-11-15 16:27:51,868 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 16:27:51,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:51,881 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 16:27:53,216 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:27:53,219 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-15 16:27:53,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:53,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 416 [2024-11-15 16:27:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:53,305 INFO L349 Elim1Store]: treesize reduction 120, result has 18.4 percent of original size [2024-11-15 16:27:53,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 67 [2024-11-15 16:27:53,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2024-11-15 16:27:53,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-15 16:27:53,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-15 16:27:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:27:54,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:27:55,256 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 1454 treesize of output 1430 [2024-11-15 16:27:55,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-15 16:27:55,373 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 80 [2024-11-15 16:27:55,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-15 16:27:55,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 260 treesize of output 258 [2024-11-15 16:27:55,433 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 247 treesize of output 239 [2024-11-15 16:27:55,481 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 6 treesize of output 4 [2024-11-15 16:27:55,521 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 144 treesize of output 138 [2024-11-15 16:27:56,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:27:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228424048] [2024-11-15 16:27:56,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:27:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022365729] [2024-11-15 16:27:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022365729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 16:27:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1249393768] [2024-11-15 16:27:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:27:56,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-15 16:27:56,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-15 16:27:56,531 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-15 16:27:56,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-15 16:27:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:27:57,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-15 16:27:57,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:27:57,391 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 10 treesize of output 8 [2024-11-15 16:27:57,506 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 16:27:57,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:57,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-15 16:27:58,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:58,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,337 INFO L349 Elim1Store]: treesize reduction 143, result has 22.3 percent of original size [2024-11-15 16:27:59,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 153 [2024-11-15 16:27:59,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 73 [2024-11-15 16:27:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,403 INFO L349 Elim1Store]: treesize reduction 116, result has 0.9 percent of original size [2024-11-15 16:27:59,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 305 treesize of output 187 [2024-11-15 16:27:59,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:27:59,417 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-15 16:27:59,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 76 [2024-11-15 16:27:59,427 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 54 treesize of output 34 [2024-11-15 16:27:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,465 INFO L349 Elim1Store]: treesize reduction 158, result has 0.6 percent of original size [2024-11-15 16:27:59,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 754 treesize of output 491 [2024-11-15 16:27:59,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:27:59,532 INFO L349 Elim1Store]: treesize reduction 134, result has 2.2 percent of original size [2024-11-15 16:27:59,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 647 treesize of output 481 [2024-11-15 16:27:59,541 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:27:59,568 INFO L349 Elim1Store]: treesize reduction 32, result has 13.5 percent of original size [2024-11-15 16:27:59,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 105 [2024-11-15 16:27:59,631 INFO L349 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2024-11-15 16:27:59,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 77 [2024-11-15 16:27:59,644 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 39 treesize of output 33 [2024-11-15 16:27:59,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2024-11-15 16:27:59,676 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 25 treesize of output 19 [2024-11-15 16:27:59,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-15 16:28:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:28:00,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:28:00,615 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 560 treesize of output 554 [2024-11-15 16:28:00,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-15 16:28:00,954 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 80 [2024-11-15 16:28:00,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-15 16:28:00,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 636 treesize of output 626 [2024-11-15 16:28:01,010 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 286 treesize of output 278 [2024-11-15 16:28:01,027 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 6 treesize of output 4 [2024-11-15 16:28:01,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 158 [2024-11-15 16:28:05,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1249393768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 16:28:05,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:28:05,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 19 [2024-11-15 16:28:05,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830982490] [2024-11-15 16:28:05,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:28:05,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-15 16:28:05,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:28:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-15 16:28:05,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2024-11-15 16:28:05,415 INFO L87 Difference]: Start difference. First operand 117 states and 154 transitions. Second operand has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 15 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-15 16:28:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:28:13,654 INFO L93 Difference]: Finished difference Result 287 states and 374 transitions. [2024-11-15 16:28:13,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-15 16:28:13,655 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 15 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 89 [2024-11-15 16:28:13,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:28:13,657 INFO L225 Difference]: With dead ends: 287 [2024-11-15 16:28:13,657 INFO L226 Difference]: Without dead ends: 277 [2024-11-15 16:28:13,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 153 SyntacticMatches, 26 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=107, Invalid=1015, Unknown=0, NotChecked=0, Total=1122 [2024-11-15 16:28:13,659 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 106 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-15 16:28:13,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1674 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-15 16:28:13,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-15 16:28:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 271. [2024-11-15 16:28:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 189 states have (on average 1.2116402116402116) internal successors, (229), 193 states have internal predecessors, (229), 59 states have call successors, (59), 20 states have call predecessors, (59), 22 states have return successors, (65), 57 states have call predecessors, (65), 57 states have call successors, (65) [2024-11-15 16:28:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2024-11-15 16:28:13,687 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 89 [2024-11-15 16:28:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:28:13,688 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2024-11-15 16:28:13,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 15 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-15 16:28:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2024-11-15 16:28:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-15 16:28:13,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:28:13,690 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:28:13,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-15 16:28:13,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-15 16:28:14,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-15 16:28:14,091 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:28:14,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:28:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -50095425, now seen corresponding path program 1 times [2024-11-15 16:28:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:28:14,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011957943] [2024-11-15 16:28:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:28:14,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:28:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184488187] [2024-11-15 16:28:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:28:14,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:28:14,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:28:14,154 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 16:28:14,155 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 16:28:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:28:14,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-15 16:28:14,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:28:14,925 INFO L349 Elim1Store]: treesize reduction 154, result has 1.9 percent of original size [2024-11-15 16:28:14,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 315 treesize of output 265 [2024-11-15 16:28:14,965 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:28:14,983 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 161 treesize of output 155 [2024-11-15 16:28:15,354 INFO L224 Elim1Store]: Index analysis took 272 ms [2024-11-15 16:28:15,866 INFO L349 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2024-11-15 16:28:15,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 119 [2024-11-15 16:28:15,927 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 61 treesize of output 57 [2024-11-15 16:28:16,913 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:28:16,924 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:28:16,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 244 [2024-11-15 16:28:17,895 INFO L349 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2024-11-15 16:28:17,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1956 treesize of output 1576 [2024-11-15 16:28:18,847 INFO L349 Elim1Store]: treesize reduction 153, result has 29.5 percent of original size [2024-11-15 16:28:18,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 3211 treesize of output 2636 [2024-11-15 16:28:19,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2024-11-15 16:28:19,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,151 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-15 16:28:19,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2024-11-15 16:28:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-15 16:28:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,174 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-15 16:28:19,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2024-11-15 16:28:19,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2024-11-15 16:28:19,186 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-15 16:28:19,204 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-11-15 16:28:19,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 60 [2024-11-15 16:28:19,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-15 16:28:19,243 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-15 16:28:19,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2024-11-15 16:28:19,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,259 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-15 16:28:19,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2024-11-15 16:28:19,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-15 16:28:19,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-15 16:28:25,866 WARN L286 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 136 DAG size of output: 37 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-15 16:28:25,866 INFO L349 Elim1Store]: treesize reduction 620, result has 11.4 percent of original size [2024-11-15 16:28:25,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 12 new quantified variables, introduced 14 case distinctions, treesize of input 660 treesize of output 883 [2024-11-15 16:28:26,883 INFO L224 Elim1Store]: Index analysis took 735 ms