/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_priority_queue_init_dynamic_harness-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 14:24:27,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 14:24:28,024 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 14:24:28,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 14:24:28,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 14:24:28,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 14:24:28,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 14:24:28,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 14:24:28,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 14:24:28,066 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 14:24:28,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 14:24:28,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 14:24:28,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 14:24:28,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 14:24:28,068 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 14:24:28,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 14:24:28,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 14:24:28,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 14:24:28,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 14:24:28,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 14:24:28,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 14:24:28,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 14:24:28,072 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 14:24:28,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 14:24:28,073 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 14:24:28,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 14:24:28,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 14:24:28,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 14:24:28,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 14:24:28,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 14:24:28,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 14:24:28,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 14:24:28,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 14:24:28,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 14:24:28,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 14:24:28,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 14:24:28,077 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 14:24:28,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 14:24:28,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 14:24:28,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 14:24:28,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 14:24:28,304 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 14:24:28,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-11-06 14:24:29,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 14:24:30,148 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 14:24:30,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-11-06 14:24:30,176 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199d953c9/060cb435c4784a9ba99eb2323b18a7a3/FLAG34bb4258d [2024-11-06 14:24:30,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199d953c9/060cb435c4784a9ba99eb2323b18a7a3 [2024-11-06 14:24:30,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 14:24:30,270 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 14:24:30,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 14:24:30,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 14:24:30,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 14:24:30,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:24:30" (1/1) ... [2024-11-06 14:24:30,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356c9b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:30, skipping insertion in model container [2024-11-06 14:24:30,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:24:30" (1/1) ... [2024-11-06 14:24:30,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 14:24:30,632 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_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-11-06 14:24:30,642 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_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-11-06 14:24:31,107 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 14:24:31,230 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 14:24:31,231 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 14:24:31,231 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 14:24:31,240 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 14:24:31,243 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,243 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,244 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 14:24:31,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,245 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,249 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 14:24:31,250 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 14:24:31,251 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 14:24:31,251 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 14:24:31,264 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,265 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 14:24:31,265 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,265 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 14:24:31,268 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,268 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 14:24:31,269 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,269 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 14:24:31,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 14:24:31,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 14:24:31,526 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 14:24:31,526 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 14:24:31,591 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 14:24:31,601 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 14:24:31,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,607 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 14:24:31,608 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 14:24:31,706 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-06 14:24:31,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 14:24:31,743 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_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-11-06 14:24:31,744 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_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-11-06 14:24:31,763 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 14:24:31,789 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 14:24:31,789 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 14:24:31,790 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 14:24:31,793 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 14:24:31,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,794 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 14:24:31,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,795 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,796 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 14:24:31,796 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 14:24:31,797 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 14:24:31,798 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 14:24:31,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,801 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 14:24:31,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,802 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 14:24:31,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,803 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 14:24:31,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,803 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 14:24:31,852 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 14:24:31,853 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 14:24:31,853 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 14:24:31,854 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 14:24:31,883 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 14:24:31,893 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 14:24:31,900 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,900 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 14:24:31,901 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:31,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 14:24:31,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 14:24:31,977 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_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-11-06 14:24:31,977 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_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-11-06 14:24:32,027 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,029 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,030 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,035 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,035 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,143 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,144 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-06 14:24:32,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-06 14:24:32,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 14:24:32,381 INFO L204 MainTranslator]: Completed translation [2024-11-06 14:24:32,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32 WrapperNode [2024-11-06 14:24:32,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 14:24:32,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 14:24:32,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 14:24:32,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 14:24:32,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,570 INFO L138 Inliner]: procedures = 698, calls = 1512, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 733 [2024-11-06 14:24:32,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 14:24:32,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 14:24:32,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 14:24:32,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 14:24:32,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,680 INFO L175 MemorySlicer]: Split 287 memory accesses to 5 slices as follows [2, 5, 238, 7, 35]. 83 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 5, 6, 1, 0]. The 239 writes are split as follows [0, 0, 232, 1, 6]. [2024-11-06 14:24:32,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 14:24:32,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 14:24:32,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 14:24:32,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 14:24:32,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (1/1) ... [2024-11-06 14:24:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 14:24:32,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:24:32,814 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 14:24:32,816 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 14:24:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-06 14:24:32,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-06 14:24:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 14:24:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-06 14:24:32,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-06 14:24:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-06 14:24:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-06 14:24:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-06 14:24:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-06 14:24:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-06 14:24:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 14:24:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 14:24:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-06 14:24:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-06 14:24:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-06 14:24:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-06 14:24:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-06 14:24:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-06 14:24:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-06 14:24:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-06 14:24:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-06 14:24:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-06 14:24:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 14:24:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-06 14:24:32,847 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-06 14:24:32,847 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 14:24:32,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 14:24:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 14:24:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 14:24:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 14:24:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 14:24:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-06 14:24:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-06 14:24:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-06 14:24:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-06 14:24:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-06 14:24:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-06 14:24:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-06 14:24:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-06 14:24:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 14:24:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 14:24:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 14:24:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 14:24:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 14:24:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-06 14:24:32,852 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-06 14:24:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-06 14:24:32,853 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-06 14:24:33,191 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 14:24:33,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 14:24:41,449 INFO L? ?]: Removed 146 outVars from TransFormulas that were not future-live. [2024-11-06 14:24:41,449 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 14:24:41,464 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 14:24:41,464 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-06 14:24:41,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:24:41 BoogieIcfgContainer [2024-11-06 14:24:41,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 14:24:41,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 14:24:41,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 14:24:41,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 14:24:41,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:24:30" (1/3) ... [2024-11-06 14:24:41,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bcbc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:24:41, skipping insertion in model container [2024-11-06 14:24:41,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:24:32" (2/3) ... [2024-11-06 14:24:41,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bcbc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:24:41, skipping insertion in model container [2024-11-06 14:24:41,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:24:41" (3/3) ... [2024-11-06 14:24:41,475 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2024-11-06 14:24:41,488 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 14:24:41,488 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 14:24:41,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 14:24:41,561 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;@563fb956, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 14:24:41,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 14:24:41,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 132 states have internal predecessors, (166), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-06 14:24:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-06 14:24:41,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:24:41,581 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:24:41,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:24:41,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:24:41,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1079394742, now seen corresponding path program 1 times [2024-11-06 14:24:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:24:41,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688164729] [2024-11-06 14:24:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:24:41,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:24:41,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:24:41,605 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 14:24:41,606 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 14:24:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:24:48,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 2432 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 14:24:48,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:24:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-06 14:24:48,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 14:24:48,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:24:48,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688164729] [2024-11-06 14:24:48,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688164729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 14:24:48,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 14:24:48,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 14:24:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260898026] [2024-11-06 14:24:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 14:24:48,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 14:24:48,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:24:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 14:24:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 14:24:48,229 INFO L87 Difference]: Start difference. First operand has 204 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 132 states have internal predecessors, (166), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 14:24:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:24:48,271 INFO L93 Difference]: Finished difference Result 399 states and 583 transitions. [2024-11-06 14:24:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 14:24:48,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 110 [2024-11-06 14:24:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:24:48,282 INFO L225 Difference]: With dead ends: 399 [2024-11-06 14:24:48,283 INFO L226 Difference]: Without dead ends: 197 [2024-11-06 14:24:48,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 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 14:24:48,291 INFO L432 NwaCegarLoop]: 270 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, 270 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 14:24:48,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 14:24:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-06 14:24:48,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-06 14:24:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 126 states have internal predecessors, (152), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-06 14:24:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2024-11-06 14:24:48,345 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 110 [2024-11-06 14:24:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:24:48,347 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2024-11-06 14:24:48,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 14:24:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2024-11-06 14:24:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-06 14:24:48,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:24:48,350 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:24:48,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 14:24:48,551 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 14:24:48,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:24:48,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:24:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1166699883, now seen corresponding path program 1 times [2024-11-06 14:24:48,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:24:48,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378094640] [2024-11-06 14:24:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:24:48,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:24:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:24:48,559 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 14:24:48,559 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 14:24:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:24:55,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 14:24:55,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:24:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-06 14:24:57,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 14:24:57,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:24:57,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378094640] [2024-11-06 14:24:57,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378094640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 14:24:57,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 14:24:57,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 14:24:57,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591099723] [2024-11-06 14:24:57,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 14:24:57,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 14:24:57,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:24:57,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 14:24:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 14:24:57,443 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-06 14:24:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:24:59,773 INFO L93 Difference]: Finished difference Result 380 states and 499 transitions. [2024-11-06 14:24:59,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 14:24:59,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 144 [2024-11-06 14:24:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:24:59,777 INFO L225 Difference]: With dead ends: 380 [2024-11-06 14:24:59,778 INFO L226 Difference]: Without dead ends: 197 [2024-11-06 14:24:59,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 14:24:59,780 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 7 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-06 14:24:59,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1260 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-06 14:24:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-06 14:24:59,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-06 14:24:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 124 states have (on average 1.217741935483871) internal successors, (151), 126 states have internal predecessors, (151), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-06 14:24:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 261 transitions. [2024-11-06 14:24:59,810 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 261 transitions. Word has length 144 [2024-11-06 14:24:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:24:59,811 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 261 transitions. [2024-11-06 14:24:59,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-06 14:24:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 261 transitions. [2024-11-06 14:24:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-06 14:24:59,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:24:59,813 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:24:59,879 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 14:25:00,014 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 14:25:00,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:25:00,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:25:00,016 INFO L85 PathProgramCache]: Analyzing trace with hash 694560411, now seen corresponding path program 1 times [2024-11-06 14:25:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:25:00,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812119759] [2024-11-06 14:25:00,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:25:00,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:00,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:25:00,022 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 14:25:00,023 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 14:25:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:25:06,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 14:25:06,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:25:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-06 14:25:07,671 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 14:25:07,671 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:25:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812119759] [2024-11-06 14:25:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812119759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 14:25:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 14:25:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 14:25:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881919281] [2024-11-06 14:25:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 14:25:07,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 14:25:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:25:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 14:25:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 14:25:07,673 INFO L87 Difference]: Start difference. First operand 197 states and 261 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-06 14:25:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:25:08,317 INFO L93 Difference]: Finished difference Result 300 states and 401 transitions. [2024-11-06 14:25:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 14:25:08,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 148 [2024-11-06 14:25:08,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:25:08,322 INFO L225 Difference]: With dead ends: 300 [2024-11-06 14:25:08,322 INFO L226 Difference]: Without dead ends: 201 [2024-11-06 14:25:08,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 14:25:08,324 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 14:25:08,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1030 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 14:25:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-06 14:25:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-06 14:25:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 127 states have (on average 1.2125984251968505) internal successors, (154), 129 states have internal predecessors, (154), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 54 states have call successors, (57) [2024-11-06 14:25:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2024-11-06 14:25:08,339 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 267 transitions. Word has length 148 [2024-11-06 14:25:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:25:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 267 transitions. [2024-11-06 14:25:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-06 14:25:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 267 transitions. [2024-11-06 14:25:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-06 14:25:08,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:25:08,342 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:25:08,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 14:25:08,542 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 14:25:08,543 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:25:08,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:25:08,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1291193502, now seen corresponding path program 1 times [2024-11-06 14:25:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:25:08,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579692417] [2024-11-06 14:25:08,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:25:08,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:25:08,548 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 14:25:08,549 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 14:25:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:25:14,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 2567 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 14:25:14,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:25:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2024-11-06 14:25:16,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 14:25:16,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:25:16,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579692417] [2024-11-06 14:25:16,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579692417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 14:25:16,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 14:25:16,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 14:25:16,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861076933] [2024-11-06 14:25:16,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 14:25:16,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 14:25:16,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:25:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 14:25:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 14:25:16,091 INFO L87 Difference]: Start difference. First operand 201 states and 267 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-06 14:25:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:25:17,980 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2024-11-06 14:25:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 14:25:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-11-06 14:25:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:25:17,984 INFO L225 Difference]: With dead ends: 209 [2024-11-06 14:25:17,984 INFO L226 Difference]: Without dead ends: 207 [2024-11-06 14:25:17,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 14:25:17,985 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 3 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 14:25:17,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1021 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 14:25:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-06 14:25:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2024-11-06 14:25:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 133 states have internal predecessors, (157), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-11-06 14:25:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 272 transitions. [2024-11-06 14:25:18,000 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 272 transitions. Word has length 149 [2024-11-06 14:25:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:25:18,001 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 272 transitions. [2024-11-06 14:25:18,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-06 14:25:18,001 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 272 transitions. [2024-11-06 14:25:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-06 14:25:18,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:25:18,007 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:25:18,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-06 14:25:18,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:18,208 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:25:18,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:25:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1293040544, now seen corresponding path program 1 times [2024-11-06 14:25:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:25:18,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479311571] [2024-11-06 14:25:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:25:18,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:18,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:25:18,212 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) [2024-11-06 14:25:18,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 14:25:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:25:24,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 14:25:24,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:25:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-06 14:25:28,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 14:25:28,255 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:25:28,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479311571] [2024-11-06 14:25:28,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479311571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 14:25:28,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 14:25:28,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-06 14:25:28,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369124519] [2024-11-06 14:25:28,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 14:25:28,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 14:25:28,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:25:28,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 14:25:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 14:25:28,258 INFO L87 Difference]: Start difference. First operand 206 states and 272 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-06 14:25:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:25:31,259 INFO L93 Difference]: Finished difference Result 401 states and 522 transitions. [2024-11-06 14:25:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 14:25:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 149 [2024-11-06 14:25:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:25:31,263 INFO L225 Difference]: With dead ends: 401 [2024-11-06 14:25:31,263 INFO L226 Difference]: Without dead ends: 208 [2024-11-06 14:25:31,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-06 14:25:31,264 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 8 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 14:25:31,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1506 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 14:25:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-06 14:25:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2024-11-06 14:25:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 134 states have internal predecessors, (158), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-11-06 14:25:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 273 transitions. [2024-11-06 14:25:31,293 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 273 transitions. Word has length 149 [2024-11-06 14:25:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:25:31,294 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 273 transitions. [2024-11-06 14:25:31,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-06 14:25:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 273 transitions. [2024-11-06 14:25:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-06 14:25:31,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:25:31,299 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:25:31,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 14:25:31,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:31,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:25:31,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:25:31,501 INFO L85 PathProgramCache]: Analyzing trace with hash -24208932, now seen corresponding path program 1 times [2024-11-06 14:25:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:25:31,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26517017] [2024-11-06 14:25:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 14:25:31,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:25:31,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:25:31,504 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) [2024-11-06 14:25:31,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 14:25:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 14:25:38,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 14:25:38,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 14:25:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 160 proven. 1 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-06 14:25:42,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 14:25:56,509 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-06 14:25:56,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 14:25:56,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26517017] [2024-11-06 14:25:56,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26517017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 14:25:56,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 14:25:56,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-06 14:25:56,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104743759] [2024-11-06 14:25:56,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 14:25:56,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-06 14:25:56,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 14:25:56,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-06 14:25:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-06 14:25:56,512 INFO L87 Difference]: Start difference. First operand 207 states and 273 transitions. Second operand has 13 states, 11 states have (on average 8.090909090909092) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-06 14:26:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 14:26:02,689 INFO L93 Difference]: Finished difference Result 404 states and 525 transitions. [2024-11-06 14:26:02,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 14:26:02,690 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.090909090909092) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 153 [2024-11-06 14:26:02,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 14:26:02,692 INFO L225 Difference]: With dead ends: 404 [2024-11-06 14:26:02,692 INFO L226 Difference]: Without dead ends: 210 [2024-11-06 14:26:02,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-06 14:26:02,695 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 10 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-06 14:26:02,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2257 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-06 14:26:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-06 14:26:02,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2024-11-06 14:26:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 136 states have internal predecessors, (160), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-11-06 14:26:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 275 transitions. [2024-11-06 14:26:02,715 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 275 transitions. Word has length 153 [2024-11-06 14:26:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 14:26:02,717 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 275 transitions. [2024-11-06 14:26:02,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.090909090909092) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-06 14:26:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 275 transitions. [2024-11-06 14:26:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-06 14:26:02,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 14:26:02,719 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 14:26:02,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-06 14:26:02,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:26:02,920 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 14:26:02,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 14:26:02,921 INFO L85 PathProgramCache]: Analyzing trace with hash -420275688, now seen corresponding path program 2 times [2024-11-06 14:26:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 14:26:02,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697188543] [2024-11-06 14:26:02,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 14:26:02,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 14:26:02,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 14:26:02,924 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) [2024-11-06 14:26:02,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process