/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_clean_up_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 20:50:00,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 20:50:00,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 20:50:00,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 20:50:00,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 20:50:00,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 20:50:00,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 20:50:00,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 20:50:00,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 20:50:00,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 20:50:00,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 20:50:00,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 20:50:00,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 20:50:00,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 20:50:00,993 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 20:50:00,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 20:50:00,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 20:50:00,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 20:50:00,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 20:50:00,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 20:50:00,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 20:50:00,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 20:50:00,995 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 20:50:00,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 20:50:00,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 20:50:00,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 20:50:00,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 20:50:00,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 20:50:00,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 20:50:00,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 20:50:00,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 20:50:00,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 20:50:00,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 20:50:00,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 20:50:00,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 20:50:00,998 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 20:50:00,999 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:00,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 20:50:00,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 20:50:00,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 20:50:00,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 20:50:01,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:01,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 20:50:01,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 20:50:01,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 20:50:01,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 20:50:01,212 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 20:50:01,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_clean_up_harness.i [2024-11-04 20:50:02,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 20:50:03,003 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 20:50:03,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_clean_up_harness.i [2024-11-04 20:50:03,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac6c69e2/147942df6c144058971d4c7ef9dbb488/FLAGa1561f70e [2024-11-04 20:50:03,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac6c69e2/147942df6c144058971d4c7ef9dbb488 [2024-11-04 20:50:03,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 20:50:03,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 20:50:03,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 20:50:03,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 20:50:03,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 20:50:03,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:50:03" (1/1) ... [2024-11-04 20:50:03,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c61367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:03, skipping insertion in model container [2024-11-04 20:50:03,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:50:03" (1/1) ... [2024-11-04 20:50:03,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 20:50:03,542 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_clean_up_harness.i[4501,4514] [2024-11-04 20:50:03,550 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_clean_up_harness.i[4561,4574] [2024-11-04 20:50:03,964 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,072 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,072 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,072 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,079 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,079 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,080 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,080 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,080 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,080 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,081 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,086 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,086 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,088 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,088 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,096 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,096 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,097 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,097 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,098 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,098 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,098 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,099 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,310 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,311 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,311 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,312 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,376 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,383 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,391 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,392 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,392 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:50:04,466 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 20:50:04,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 20:50:04,488 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_clean_up_harness.i[4501,4514] [2024-11-04 20:50:04,489 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_clean_up_harness.i[4561,4574] [2024-11-04 20:50:04,507 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,521 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,522 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,522 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,524 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,524 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,525 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,525 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,525 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,525 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,526 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,527 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,527 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,527 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,528 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,530 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,531 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,531 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,531 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,532 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,532 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,577 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,578 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,582 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,582 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,611 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,620 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,626 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,627 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:50:04,627 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:50:04,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 20:50:04,699 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_clean_up_harness.i[4501,4514] [2024-11-04 20:50:04,700 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_clean_up_harness.i[4561,4574] [2024-11-04 20:50:04,786 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,787 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,787 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,787 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,787 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,790 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,791 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,791 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,791 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,834 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,835 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:50:04,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-04 20:50:04,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:50:05,049 INFO L204 MainTranslator]: Completed translation [2024-11-04 20:50:05,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05 WrapperNode [2024-11-04 20:50:05,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 20:50:05,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 20:50:05,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 20:50:05,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 20:50:05,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,175 INFO L138 Inliner]: procedures = 698, calls = 1509, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 620 [2024-11-04 20:50:05,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 20:50:05,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 20:50:05,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 20:50:05,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 20:50:05,187 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,277 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 6, 238, 3, 47]. 80 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 5, 6, 1, 0]. The 251 writes are split as follows [0, 0, 232, 1, 18]. [2024-11-04 20:50:05,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 20:50:05,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 20:50:05,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 20:50:05,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 20:50:05,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (1/1) ... [2024-11-04 20:50:05,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 20:50:05,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 20:50:05,397 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) [2024-11-04 20:50:05,400 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 [2024-11-04 20:50:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-04 20:50:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-04 20:50:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 20:50:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-04 20:50:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-04 20:50:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-04 20:50:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-04 20:50:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-04 20:50:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-04 20:50:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-04 20:50:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-04 20:50:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 20:50:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 20:50:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2024-11-04 20:50:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-04 20:50:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 20:50:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 20:50:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 20:50:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-04 20:50:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-04 20:50:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-04 20:50:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-04 20:50:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 20:50:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-04 20:50:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-04 20:50:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 20:50:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 20:50:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-04 20:50:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 20:50:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 20:50:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 20:50:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 20:50:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-04 20:50:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-04 20:50:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-04 20:50:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-04 20:50:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-04 20:50:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-04 20:50:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-04 20:50:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-04 20:50:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-04 20:50:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-04 20:50:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-04 20:50:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-04 20:50:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-04 20:50:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-04 20:50:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-04 20:50:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-04 20:50:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-04 20:50:05,689 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 20:50:05,691 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 20:50:14,244 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-04 20:50:14,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 20:50:14,256 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 20:50:14,256 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-04 20:50:14,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:50:14 BoogieIcfgContainer [2024-11-04 20:50:14,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 20:50:14,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 20:50:14,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 20:50:14,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 20:50:14,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:50:03" (1/3) ... [2024-11-04 20:50:14,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b30c85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:50:14, skipping insertion in model container [2024-11-04 20:50:14,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:50:05" (2/3) ... [2024-11-04 20:50:14,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b30c85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:50:14, skipping insertion in model container [2024-11-04 20:50:14,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:50:14" (3/3) ... [2024-11-04 20:50:14,263 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness.i [2024-11-04 20:50:14,289 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 20:50:14,289 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 20:50:14,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 20:50:14,342 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;@65d8ebe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 20:50:14,343 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 20:50:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 121 states have (on average 1.2479338842975207) internal successors, (151), 122 states have internal predecessors, (151), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-04 20:50:14,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-04 20:50:14,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:50:14,361 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:50:14,362 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:50:14,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:50:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1166305317, now seen corresponding path program 1 times [2024-11-04 20:50:14,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:50:14,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795697683] [2024-11-04 20:50:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:50:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:50:14,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:50:14,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 20:50:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:50:20,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 20:50:20,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:50:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-04 20:50:20,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:50:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-04 20:50:25,626 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:50:25,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795697683] [2024-11-04 20:50:25,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [795697683] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 20:50:25,627 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 20:50:25,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-04 20:50:25,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483800198] [2024-11-04 20:50:25,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 20:50:25,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 20:50:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:50:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 20:50:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 20:50:25,675 INFO L87 Difference]: Start difference. First operand has 181 states, 121 states have (on average 1.2479338842975207) internal successors, (151), 122 states have internal predecessors, (151), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-04 20:50:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 20:50:25,744 INFO L93 Difference]: Finished difference Result 336 states and 457 transitions. [2024-11-04 20:50:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 20:50:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135 [2024-11-04 20:50:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 20:50:25,769 INFO L225 Difference]: With dead ends: 336 [2024-11-04 20:50:25,769 INFO L226 Difference]: Without dead ends: 176 [2024-11-04 20:50:25,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 20:50:25,781 INFO L432 NwaCegarLoop]: 227 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, 227 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 [2024-11-04 20:50:25,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 20:50:25,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-04 20:50:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-04 20:50:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 118 states have internal predecessors, (141), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-04 20:50:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 222 transitions. [2024-11-04 20:50:25,865 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 222 transitions. Word has length 135 [2024-11-04 20:50:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 20:50:25,866 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 222 transitions. [2024-11-04 20:50:25,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-04 20:50:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 222 transitions. [2024-11-04 20:50:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-04 20:50:25,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:50:25,878 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:50:25,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-04 20:50:26,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:26,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:50:26,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:50:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash 703796999, now seen corresponding path program 1 times [2024-11-04 20:50:26,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:50:26,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735019909] [2024-11-04 20:50:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:50:26,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:50:26,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:50:26,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 20:50:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:50:33,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-04 20:50:33,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:50:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-04 20:50:36,855 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:50:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-04 20:50:48,066 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:50:48,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735019909] [2024-11-04 20:50:48,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1735019909] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 20:50:48,066 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 20:50:48,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2024-11-04 20:50:48,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711725543] [2024-11-04 20:50:48,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 20:50:48,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 20:50:48,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:50:48,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 20:50:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 20:50:48,070 INFO L87 Difference]: Start difference. First operand 176 states and 222 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-04 20:50:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 20:50:49,958 INFO L93 Difference]: Finished difference Result 273 states and 341 transitions. [2024-11-04 20:50:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-04 20:50:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 152 [2024-11-04 20:50:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 20:50:49,962 INFO L225 Difference]: With dead ends: 273 [2024-11-04 20:50:49,962 INFO L226 Difference]: Without dead ends: 176 [2024-11-04 20:50:49,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 20:50:49,965 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 7 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-04 20:50:49,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 602 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-04 20:50:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-04 20:50:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-04 20:50:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 116 states have (on average 1.206896551724138) internal successors, (140), 118 states have internal predecessors, (140), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-04 20:50:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-11-04 20:50:49,984 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 152 [2024-11-04 20:50:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 20:50:49,986 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-11-04 20:50:49,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-04 20:50:49,986 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-11-04 20:50:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-04 20:50:49,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:50:49,995 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:50:50,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-04 20:50:50,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:50,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:50:50,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:50:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash -782347531, now seen corresponding path program 1 times [2024-11-04 20:50:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:50:50,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321673565] [2024-11-04 20:50:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:50:50,200 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:50:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:50:50,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:50:50,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 20:50:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:50:56,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-04 20:50:56,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:51:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-04 20:51:01,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:51:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-04 20:51:16,954 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:51:16,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321673565] [2024-11-04 20:51:16,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1321673565] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 20:51:16,955 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 20:51:16,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2024-11-04 20:51:16,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915282497] [2024-11-04 20:51:16,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 20:51:16,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-04 20:51:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:51:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-04 20:51:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-04 20:51:16,959 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2024-11-04 20:51:25,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 20:51:25,280 INFO L93 Difference]: Finished difference Result 292 states and 370 transitions. [2024-11-04 20:51:25,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-04 20:51:25,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) Word has length 160 [2024-11-04 20:51:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 20:51:25,288 INFO L225 Difference]: With dead ends: 292 [2024-11-04 20:51:25,288 INFO L226 Difference]: Without dead ends: 178 [2024-11-04 20:51:25,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-04 20:51:25,289 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 61 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-04 20:51:25,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1158 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-04 20:51:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-04 20:51:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-04 20:51:25,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 117 states have (on average 1.205128205128205) internal successors, (141), 120 states have internal predecessors, (141), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2024-11-04 20:51:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 224 transitions. [2024-11-04 20:51:25,313 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 224 transitions. Word has length 160 [2024-11-04 20:51:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 20:51:25,313 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 224 transitions. [2024-11-04 20:51:25,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2024-11-04 20:51:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 224 transitions. [2024-11-04 20:51:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-04 20:51:25,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:51:25,316 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:51:25,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-04 20:51:25,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 20:51:25,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:51:25,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:51:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1883194293, now seen corresponding path program 1 times [2024-11-04 20:51:25,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:51:25,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757720502] [2024-11-04 20:51:25,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:51:25,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:51:25,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:51:25,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:51:25,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-04 20:51:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:51:31,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 2826 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-04 20:51:31,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:51:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-04 20:51:36,555 INFO L311 TraceCheckSpWp]: Computing backward predicates...