/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --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_array_list_clear_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 13:55:43,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 13:55:43,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 13:55:43,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 13:55:43,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 13:55:43,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 13:55:43,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 13:55:43,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 13:55:43,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 13:55:43,708 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 13:55:43,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 13:55:43,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 13:55:43,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 13:55:43,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 13:55:43,709 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 13:55:43,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 13:55:43,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 13:55:43,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 13:55:43,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 13:55:43,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 13:55:43,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 13:55:43,714 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 13:55:43,714 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 13:55:43,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 13:55:43,715 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 13:55:43,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 13:55:43,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 13:55:43,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 13:55:43,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 13:55:43,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 13:55:43,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 13:55:43,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 13:55:43,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 13:55:43,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 13:55:43,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 13:55:43,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 13:55:43,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 13:55:43,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 13:55:43,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 13:55:43,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 13:55:43,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 13:55:43,908 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 13:55:43,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_array_list_clear_harness.i [2024-11-06 13:55:45,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 13:55:45,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 13:55:45,483 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_clear_harness.i [2024-11-06 13:55:45,514 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33538aff7/582faffbe8a246b3b0e505ed4993cd47/FLAG06787e8bf [2024-11-06 13:55:45,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33538aff7/582faffbe8a246b3b0e505ed4993cd47 [2024-11-06 13:55:45,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 13:55:45,531 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 13:55:45,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 13:55:45,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 13:55:45,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 13:55:45,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:55:45" (1/1) ... [2024-11-06 13:55:45,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206e092c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:45, skipping insertion in model container [2024-11-06 13:55:45,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:55:45" (1/1) ... [2024-11-06 13:55:45,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 13:55:45,819 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_array_list_clear_harness.i[4494,4507] [2024-11-06 13:55:45,825 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_array_list_clear_harness.i[4554,4567] [2024-11-06 13:55:46,174 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,290 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,291 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,292 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,300 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,301 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,302 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,302 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,303 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,303 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,303 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,305 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,305 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,307 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,307 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,312 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,312 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,312 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,313 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,314 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,314 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,316 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,316 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,547 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,547 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,548 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,548 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,605 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,610 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,614 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,614 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,614 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,614 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,615 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,615 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,615 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,615 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,616 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 13:55:46,676 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-06 13:55:46,697 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 13:55:46,701 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_array_list_clear_harness.i[4494,4507] [2024-11-06 13:55:46,701 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_array_list_clear_harness.i[4554,4567] [2024-11-06 13:55:46,716 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,732 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,733 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,733 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,741 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,746 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,750 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,750 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,751 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,751 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,757 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,757 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,758 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,758 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,759 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,759 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,759 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,759 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,760 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,760 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,761 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,761 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,761 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,764 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,808 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,809 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,809 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,809 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,824 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,829 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,830 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,830 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,831 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,831 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,831 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,833 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,834 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,834 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,834 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,834 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,835 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,835 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,835 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,835 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 13:55:46,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 13:55:46,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 13:55:46,889 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_array_list_clear_harness.i[4494,4507] [2024-11-06 13:55:46,889 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_array_list_clear_harness.i[4554,4567] [2024-11-06 13:55:46,922 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,933 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,934 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,934 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,935 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,935 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,935 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,936 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,936 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,984 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,989 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 13:55:46,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-06 13:55:47,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 13:55:47,196 INFO L204 MainTranslator]: Completed translation [2024-11-06 13:55:47,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47 WrapperNode [2024-11-06 13:55:47,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 13:55:47,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 13:55:47,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 13:55:47,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 13:55:47,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,312 INFO L138 Inliner]: procedures = 699, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 583 [2024-11-06 13:55:47,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 13:55:47,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 13:55:47,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 13:55:47,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 13:55:47,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,410 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 238, 9, 3, 5, 34]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 1, 5, 5]. The 237 writes are split as follows [0, 232, 0, 1, 0, 4]. [2024-11-06 13:55:47,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 13:55:47,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 13:55:47,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 13:55:47,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 13:55:47,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (1/1) ... [2024-11-06 13:55:47,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 13:55:47,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 13:55:47,501 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) [2024-11-06 13:55:47,503 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 [2024-11-06 13:55:47,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 13:55:47,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-06 13:55:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-06 13:55:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-06 13:55:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 13:55:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-06 13:55:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-06 13:55:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-06 13:55:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 13:55:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 13:55:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 13:55:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-06 13:55:47,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-06 13:55:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-06 13:55:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-06 13:55:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-06 13:55:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-06 13:55:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-06 13:55:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-06 13:55:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-06 13:55:47,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-06 13:55:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 13:55:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 13:55:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 13:55:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 13:55:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-06 13:55:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-06 13:55:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-06 13:55:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-06 13:55:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-06 13:55:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 13:55:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-06 13:55:47,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 13:55:47,785 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 13:55:54,744 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-06 13:55:54,744 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 13:55:54,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 13:55:54,757 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 13:55:54,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:55:54 BoogieIcfgContainer [2024-11-06 13:55:54,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 13:55:54,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 13:55:54,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 13:55:54,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 13:55:54,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:55:45" (1/3) ... [2024-11-06 13:55:54,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e27322b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:55:54, skipping insertion in model container [2024-11-06 13:55:54,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:55:47" (2/3) ... [2024-11-06 13:55:54,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e27322b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:55:54, skipping insertion in model container [2024-11-06 13:55:54,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:55:54" (3/3) ... [2024-11-06 13:55:54,766 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness.i [2024-11-06 13:55:54,778 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 13:55:54,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 13:55:54,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 13:55:54,845 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;@2523ed3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 13:55:54,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 13:55:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-06 13:55:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 13:55:54,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 13:55:54,858 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 13:55:54,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 13:55:54,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 13:55:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1818819730, now seen corresponding path program 1 times [2024-11-06 13:55:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 13:55:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834697284] [2024-11-06 13:55:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 13:55:54,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 13:55:54,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 13:55:54,880 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) [2024-11-06 13:55:54,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 13:56:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 13:56:00,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 2365 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 13:56:00,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 13:56:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-06 13:56:00,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 13:56:00,589 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 13:56:00,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834697284] [2024-11-06 13:56:00,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834697284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 13:56:00,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 13:56:00,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 13:56:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304756891] [2024-11-06 13:56:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 13:56:00,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 13:56:00,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 13:56:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 13:56:00,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 13:56:00,612 INFO L87 Difference]: Start difference. First operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-06 13:56:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 13:56:00,639 INFO L93 Difference]: Finished difference Result 195 states and 256 transitions. [2024-11-06 13:56:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 13:56:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 60 [2024-11-06 13:56:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 13:56:00,648 INFO L225 Difference]: With dead ends: 195 [2024-11-06 13:56:00,648 INFO L226 Difference]: Without dead ends: 96 [2024-11-06 13:56:00,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 13:56:00,655 INFO L432 NwaCegarLoop]: 123 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, 123 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 [2024-11-06 13:56:00,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 13:56:00,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-06 13:56:00,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-06 13:56:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-06 13:56:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-06 13:56:00,689 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-06 13:56:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 13:56:00,689 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-06 13:56:00,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-06 13:56:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-06 13:56:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 13:56:00,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 13:56:00,692 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 13:56:00,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 13:56:00,892 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 [2024-11-06 13:56:00,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 13:56:00,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 13:56:00,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1417756758, now seen corresponding path program 1 times [2024-11-06 13:56:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 13:56:00,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302641983] [2024-11-06 13:56:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 13:56:00,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 13:56:00,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 13:56:00,898 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) [2024-11-06 13:56:00,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 13:56:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 13:56:06,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 2365 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 13:56:06,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 13:56:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 13:56:08,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 13:56:08,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 13:56:08,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302641983] [2024-11-06 13:56:08,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302641983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 13:56:08,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 13:56:08,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 13:56:08,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910097398] [2024-11-06 13:56:08,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 13:56:08,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 13:56:08,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 13:56:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 13:56:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 13:56:08,222 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-06 13:56:11,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 13:56:11,138 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-06 13:56:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 13:56:11,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-06 13:56:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 13:56:11,142 INFO L225 Difference]: With dead ends: 160 [2024-11-06 13:56:11,142 INFO L226 Difference]: Without dead ends: 98 [2024-11-06 13:56:11,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 13:56:11,143 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 23 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 13:56:11,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 362 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 13:56:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-06 13:56:11,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-06 13:56:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-06 13:56:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-06 13:56:11,154 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-06 13:56:11,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 13:56:11,154 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-06 13:56:11,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-06 13:56:11,154 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-06 13:56:11,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 13:56:11,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 13:56:11,156 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 13:56:11,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 13:56:11,356 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 [2024-11-06 13:56:11,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 13:56:11,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 13:56:11,358 INFO L85 PathProgramCache]: Analyzing trace with hash -270811530, now seen corresponding path program 1 times [2024-11-06 13:56:11,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 13:56:11,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344604262] [2024-11-06 13:56:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 13:56:11,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 13:56:11,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 13:56:11,366 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) [2024-11-06 13:56:11,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 13:56:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 13:56:16,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 2465 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 13:56:16,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 13:56:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 13:56:20,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 13:56:20,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 13:56:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344604262] [2024-11-06 13:56:20,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344604262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 13:56:20,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 13:56:20,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 13:56:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735393495] [2024-11-06 13:56:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 13:56:20,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 13:56:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 13:56:20,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 13:56:20,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-06 13:56:20,173 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-06 13:56:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 13:56:25,226 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-06 13:56:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 13:56:25,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2024-11-06 13:56:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 13:56:25,228 INFO L225 Difference]: With dead ends: 157 [2024-11-06 13:56:25,228 INFO L226 Difference]: Without dead ends: 96 [2024-11-06 13:56:25,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-06 13:56:25,229 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-06 13:56:25,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 540 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-06 13:56:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-06 13:56:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-06 13:56:25,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-06 13:56:25,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-06 13:56:25,239 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-06 13:56:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 13:56:25,240 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-06 13:56:25,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-06 13:56:25,240 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-06 13:56:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-06 13:56:25,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 13:56:25,242 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 13:56:25,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 13:56:25,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 13:56:25,443 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 13:56:25,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 13:56:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1423335052, now seen corresponding path program 1 times [2024-11-06 13:56:25,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 13:56:25,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254571044] [2024-11-06 13:56:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 13:56:25,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 13:56:25,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 13:56:25,447 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) [2024-11-06 13:56:25,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 13:56:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 13:56:31,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 2665 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-06 13:56:31,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 13:56:33,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-06 13:56:33,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-06 13:56:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 64 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-06 13:56:55,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 13:57:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-06 13:57:15,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 13:57:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254571044] [2024-11-06 13:57:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254571044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 13:57:15,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 13:57:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 19 [2024-11-06 13:57:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192571354] [2024-11-06 13:57:15,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 13:57:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-06 13:57:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 13:57:15,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-06 13:57:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-06 13:57:15,936 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 17 states have internal predecessors, (91), 11 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (26), 11 states have call predecessors, (26), 11 states have call successors, (26)