/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_init_static_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 15:11:31,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 15:11:32,048 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 15:11:32,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 15:11:32,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 15:11:32,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 15:11:32,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 15:11:32,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 15:11:32,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 15:11:32,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 15:11:32,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 15:11:32,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 15:11:32,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 15:11:32,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 15:11:32,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 15:11:32,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 15:11:32,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 15:11:32,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 15:11:32,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 15:11:32,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 15:11:32,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 15:11:32,088 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 15:11:32,088 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 15:11:32,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 15:11:32,089 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 15:11:32,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 15:11:32,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 15:11:32,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 15:11:32,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 15:11:32,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 15:11:32,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 15:11:32,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 15:11:32,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 15:11:32,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 15:11:32,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 15:11:32,091 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 15:11:32,091 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 15:11:32,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 15:11:32,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 15:11:32,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 15:11:32,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 15:11:32,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 15:11:32,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 15:11:32,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 15:11:32,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 15:11:32,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 15:11:32,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 15:11:32,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_init_static_harness.i [2024-11-04 15:11:33,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 15:11:33,919 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 15:11:33,920 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_init_static_harness.i [2024-11-04 15:11:33,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b36e17486/892bb69fb3a04bf0980b0582c1f41123/FLAG83fc76786 [2024-11-04 15:11:34,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b36e17486/892bb69fb3a04bf0980b0582c1f41123 [2024-11-04 15:11:34,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 15:11:34,131 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 15:11:34,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 15:11:34,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 15:11:34,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 15:11:34,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 03:11:34" (1/1) ... [2024-11-04 15:11:34,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cced2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:34, skipping insertion in model container [2024-11-04 15:11:34,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 03:11:34" (1/1) ... [2024-11-04 15:11:34,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 15:11:34,421 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_static_harness.i[4504,4517] [2024-11-04 15:11:34,429 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_static_harness.i[4564,4577] [2024-11-04 15:11:34,810 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 15:11:34,926 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 15:11:34,927 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 15:11:34,927 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 15:11:34,932 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 15:11:34,933 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,933 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,933 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,934 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 15:11:34,934 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,934 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,936 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 15:11:34,936 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 15:11:34,937 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 15:11:34,938 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 15:11:34,945 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,946 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 15:11:34,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,946 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 15:11:34,948 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,948 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 15:11:34,949 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:34,949 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 15:11:35,285 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 15:11:35,286 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 15:11:35,287 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 15:11:35,287 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 15:11:35,349 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 15:11:35,361 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 15:11:35,366 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,366 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 15:11:35,366 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,398 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 15:11:35,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 15:11:35,435 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 15:11:35,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 15:11:35,472 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_static_harness.i[4504,4517] [2024-11-04 15:11:35,472 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_static_harness.i[4564,4577] [2024-11-04 15:11:35,486 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 15:11:35,505 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 15:11:35,505 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 15:11:35,505 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 15:11:35,507 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 15:11:35,508 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,508 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,508 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,509 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 15:11:35,509 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,509 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,510 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 15:11:35,510 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 15:11:35,511 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 15:11:35,511 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 15:11:35,516 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,517 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 15:11:35,517 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,517 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 15:11:35,518 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,518 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 15:11:35,518 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,518 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 15:11:35,558 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 15:11:35,559 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 15:11:35,560 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 15:11:35,561 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 15:11:35,583 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 15:11:35,587 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 15:11:35,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,594 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 15:11:35,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,613 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 15:11:35,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 15:11:35,628 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 15:11:35,643 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_static_harness.i[4504,4517] [2024-11-04 15:11:35,644 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_static_harness.i[4564,4577] [2024-11-04 15:11:35,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,687 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,693 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 15:11:35,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-04 15:11:35,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 15:11:36,003 INFO L204 MainTranslator]: Completed translation [2024-11-04 15:11:36,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36 WrapperNode [2024-11-04 15:11:36,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 15:11:36,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 15:11:36,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 15:11:36,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 15:11:36,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,119 INFO L138 Inliner]: procedures = 698, calls = 1525, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 681 [2024-11-04 15:11:36,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 15:11:36,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 15:11:36,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 15:11:36,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 15:11:36,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,240 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 2, 238, 49, 5]. 80 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 0, 6, 2, 5]. The 252 writes are split as follows [0, 0, 232, 20, 0]. [2024-11-04 15:11:36,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 15:11:36,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 15:11:36,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 15:11:36,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 15:11:36,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (1/1) ... [2024-11-04 15:11:36,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 15:11:36,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 15:11:36,362 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 15:11:36,364 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 15:11:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-04 15:11:36,384 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-04 15:11:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 15:11:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-04 15:11:36,384 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-04 15:11:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-04 15:11:36,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-04 15:11:36,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 15:11:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 15:11:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-04 15:11:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 15:11:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-04 15:11:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-04 15:11:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-04 15:11:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 15:11:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 15:11:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 15:11:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 15:11:36,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-04 15:11:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-04 15:11:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 15:11:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-04 15:11:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-04 15:11:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 15:11:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-04 15:11:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-04 15:11:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-04 15:11:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-04 15:11:36,643 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 15:11:36,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 15:11:48,620 INFO L? ?]: Removed 135 outVars from TransFormulas that were not future-live. [2024-11-04 15:11:48,620 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 15:11:48,631 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 15:11:48,633 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-04 15:11:48,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 03:11:48 BoogieIcfgContainer [2024-11-04 15:11:48,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 15:11:48,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 15:11:48,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 15:11:48,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 15:11:48,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 03:11:34" (1/3) ... [2024-11-04 15:11:48,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ef32b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 03:11:48, skipping insertion in model container [2024-11-04 15:11:48,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 03:11:36" (2/3) ... [2024-11-04 15:11:48,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ef32b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 03:11:48, skipping insertion in model container [2024-11-04 15:11:48,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 03:11:48" (3/3) ... [2024-11-04 15:11:48,640 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2024-11-04 15:11:48,651 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 15:11:48,652 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 15:11:48,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 15:11:48,711 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;@46b9b841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 15:11:48,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 15:11:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 106 states have internal predecessors, (129), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-04 15:11:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-04 15:11:48,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 15:11:48,731 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 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] [2024-11-04 15:11:48,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 15:11:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 15:11:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1322427041, now seen corresponding path program 1 times [2024-11-04 15:11:48,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 15:11:48,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498864074] [2024-11-04 15:11:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 15:11:48,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 15:11:48,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 15:11:48,747 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) [2024-11-04 15:11:48,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-04 15:11:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 15:11:54,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 15:11:54,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 15:11:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-04 15:11:54,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 15:12:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-04 15:12:00,384 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 15:12:00,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498864074] [2024-11-04 15:12:00,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1498864074] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 15:12:00,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 15:12:00,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-04 15:12:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369841438] [2024-11-04 15:12:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 15:12:00,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 15:12:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 15:12:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 15:12:00,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 15:12:00,407 INFO L87 Difference]: Start difference. First operand has 168 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 106 states have internal predecessors, (129), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-04 15:12:00,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 15:12:00,440 INFO L93 Difference]: Finished difference Result 312 states and 447 transitions. [2024-11-04 15:12:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 15:12:00,442 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 154 [2024-11-04 15:12:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 15:12:00,450 INFO L225 Difference]: With dead ends: 312 [2024-11-04 15:12:00,450 INFO L226 Difference]: Without dead ends: 162 [2024-11-04 15:12:00,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 306 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 15:12:00,455 INFO L432 NwaCegarLoop]: 219 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, 219 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 15:12:00,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 15:12:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-04 15:12:00,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-04 15:12:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.17) internal successors, (117), 101 states have internal predecessors, (117), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-04 15:12:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2024-11-04 15:12:00,509 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 154 [2024-11-04 15:12:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 15:12:00,510 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2024-11-04 15:12:00,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-04 15:12:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2024-11-04 15:12:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-04 15:12:00,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 15:12:00,512 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 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] [2024-11-04 15:12:00,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-04 15:12:00,713 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 [2024-11-04 15:12:00,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 15:12:00,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 15:12:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1709234866, now seen corresponding path program 1 times [2024-11-04 15:12:00,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 15:12:00,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201315035] [2024-11-04 15:12:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 15:12:00,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 15:12:00,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 15:12:00,716 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) [2024-11-04 15:12:00,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-04 15:12:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 15:12:06,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-04 15:12:06,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 15:12:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-04 15:12:08,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 15:12:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-04 15:12:19,343 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 15:12:19,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201315035] [2024-11-04 15:12:19,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1201315035] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 15:12:19,344 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 15:12:19,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-04 15:12:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003302634] [2024-11-04 15:12:19,344 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 15:12:19,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-04 15:12:19,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 15:12:19,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-04 15:12:19,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-04 15:12:19,348 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 9 states have internal predecessors, (64), 6 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-11-04 15:12:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 15:12:21,530 INFO L93 Difference]: Finished difference Result 275 states and 355 transitions. [2024-11-04 15:12:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-04 15:12:21,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 9 states have internal predecessors, (64), 6 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 171 [2024-11-04 15:12:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 15:12:21,536 INFO L225 Difference]: With dead ends: 275 [2024-11-04 15:12:21,536 INFO L226 Difference]: Without dead ends: 162 [2024-11-04 15:12:21,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-04 15:12:21,539 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 7 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-04 15:12:21,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1219 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-04 15:12:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-04 15:12:21,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-04 15:12:21,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-04 15:12:21,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 211 transitions. [2024-11-04 15:12:21,554 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 211 transitions. Word has length 171 [2024-11-04 15:12:21,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 15:12:21,554 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 211 transitions. [2024-11-04 15:12:21,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 9 states have internal predecessors, (64), 6 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-11-04 15:12:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2024-11-04 15:12:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-04 15:12:21,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 15:12:21,556 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 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] [2024-11-04 15:12:21,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-04 15:12:21,757 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 [2024-11-04 15:12:21,758 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 15:12:21,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 15:12:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1239998950, now seen corresponding path program 1 times [2024-11-04 15:12:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 15:12:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913716877] [2024-11-04 15:12:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 15:12:21,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 15:12:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 15:12:21,761 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) [2024-11-04 15:12:21,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-04 15:12:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 15:12:27,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 2826 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-04 15:12:27,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 15:12:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-04 15:12:33,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 15:12:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-04 15:12:45,508 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 15:12:45,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913716877] [2024-11-04 15:12:45,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [913716877] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 15:12:45,508 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 15:12:45,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2024-11-04 15:12:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258939293] [2024-11-04 15:12:45,508 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 15:12:45,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-04 15:12:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 15:12:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-04 15:12:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-04 15:12:45,511 INFO L87 Difference]: Start difference. First operand 162 states and 211 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-04 15:12:52,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-04 15:12:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 15:12:58,248 INFO L93 Difference]: Finished difference Result 258 states and 332 transitions. [2024-11-04 15:12:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-04 15:12:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 173 [2024-11-04 15:12:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 15:12:58,254 INFO L225 Difference]: With dead ends: 258 [2024-11-04 15:12:58,254 INFO L226 Difference]: Without dead ends: 164 [2024-11-04 15:12:58,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-04 15:12:58,255 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 38 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-04 15:12:58,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1191 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-04 15:12:58,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-04 15:12:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-04 15:12:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 103 states have internal predecessors, (117), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-11-04 15:12:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 214 transitions. [2024-11-04 15:12:58,267 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 214 transitions. Word has length 173 [2024-11-04 15:12:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 15:12:58,268 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 214 transitions. [2024-11-04 15:12:58,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-04 15:12:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 214 transitions. [2024-11-04 15:12:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-04 15:12:58,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 15:12:58,270 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:12:58,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-04 15:12:58,470 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 [2024-11-04 15:12:58,471 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 15:12:58,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 15:12:58,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1386389838, now seen corresponding path program 1 times [2024-11-04 15:12:58,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 15:12:58,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455631225] [2024-11-04 15:12:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 15:12:58,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 15:12:58,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 15:12:58,473 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) [2024-11-04 15:12:58,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-04 15:13:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 15:13:04,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-04 15:13:04,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 15:13:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-04 15:13:07,837 INFO L311 TraceCheckSpWp]: Computing backward predicates...