/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 'cvc5 --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_linked_list_back_harness_negated.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 02:27:17,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 02:27:18,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 02:27:18,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 02:27:18,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 02:27:18,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 02:27:18,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 02:27:18,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 02:27:18,104 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 02:27:18,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 02:27:18,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 02:27:18,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 02:27:18,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 02:27:18,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 02:27:18,110 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 02:27:18,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 02:27:18,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 02:27:18,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 02:27:18,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 02:27:18,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 02:27:18,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 02:27:18,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 02:27:18,113 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 02:27:18,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 02:27:18,113 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 02:27:18,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 02:27:18,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 02:27:18,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 02:27:18,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 02:27:18,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 02:27:18,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 02:27:18,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:27:18,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 02:27:18,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 02:27:18,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 02:27:18,117 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 02:27:18,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 02:27:18,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 02:27:18,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 02:27:18,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 02:27:18,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 02:27:18,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:18,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 02:27:18,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 02:27:18,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 02:27:18,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 02:27:18,418 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 02:27:18,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i [2024-11-05 02:27:19,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 02:27:20,407 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 02:27:20,407 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i [2024-11-05 02:27:20,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d49cc61/05d581665c304df287226453b4dd4f2d/FLAG56a4e53a2 [2024-11-05 02:27:20,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d49cc61/05d581665c304df287226453b4dd4f2d [2024-11-05 02:27:20,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 02:27:20,472 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 02:27:20,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 02:27:20,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 02:27:20,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 02:27:20,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:27:20" (1/1) ... [2024-11-05 02:27:20,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2fa14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:20, skipping insertion in model container [2024-11-05 02:27:20,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 02:27:20" (1/1) ... [2024-11-05 02:27:20,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:27:20,917 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4494,4507] [2024-11-05 02:27:20,929 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4554,4567] [2024-11-05 02:27:21,542 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,681 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,681 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,682 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,702 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,707 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,708 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,708 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,709 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,715 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,715 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,718 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,718 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,727 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,727 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,728 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,728 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,730 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,730 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,731 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,732 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,733 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,733 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,734 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:21,734 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:21,734 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,037 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,038 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,038 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,039 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,157 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:27:22,215 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 02:27:22,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 02:27:22,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4494,4507] [2024-11-05 02:27:22,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4554,4567] [2024-11-05 02:27:22,283 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,296 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,296 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,297 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,306 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,308 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,309 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,309 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,310 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,310 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,310 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,312 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,312 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,313 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,313 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,317 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,318 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,318 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,319 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,319 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,319 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,320 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,320 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,321 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,321 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,321 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,322 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,322 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,374 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,375 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,375 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,376 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,410 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 02:27:22,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:27:22,428 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 02:27:22,447 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4494,4507] [2024-11-05 02:27:22,447 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_back_harness_negated.i[4554,4567] [2024-11-05 02:27:22,491 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,492 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,492 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,492 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,493 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,500 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,500 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,501 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,501 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,502 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,502 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,503 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,506 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-05 02:27:22,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 02:27:22,829 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-05 02:27:22,844 INFO L204 MainTranslator]: Completed translation [2024-11-05 02:27:22,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22 WrapperNode [2024-11-05 02:27:22,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 02:27:22,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 02:27:22,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 02:27:22,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 02:27:22,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:22,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:22,990 INFO L138 Inliner]: procedures = 687, calls = 1043, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 136 [2024-11-05 02:27:22,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 02:27:22,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 02:27:22,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 02:27:22,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 02:27:23,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,043 INFO L175 MemorySlicer]: Split 27 memory accesses to 3 slices as follows [2, 5, 20]. 74 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2024-11-05 02:27:23,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 02:27:23,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 02:27:23,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 02:27:23,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 02:27:23,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (1/1) ... [2024-11-05 02:27:23,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 02:27:23,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 02:27:23,120 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) [2024-11-05 02:27:23,127 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 [2024-11-05 02:27:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2024-11-05 02:27:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2024-11-05 02:27:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 02:27:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 02:27:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 02:27:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 02:27:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-05 02:27:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-05 02:27:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:27:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-05 02:27:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-05 02:27:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-05 02:27:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-05 02:27:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 02:27:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 02:27:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 02:27:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 02:27:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 02:27:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 02:27:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-05 02:27:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 02:27:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-05 02:27:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-05 02:27:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:27:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-05 02:27:23,452 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 02:27:23,454 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 02:27:23,882 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-05 02:27:23,882 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 02:27:23,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 02:27:23,898 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-05 02:27:23,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:27:23 BoogieIcfgContainer [2024-11-05 02:27:23,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 02:27:23,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 02:27:23,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 02:27:23,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 02:27:23,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 02:27:20" (1/3) ... [2024-11-05 02:27:23,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7facc20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:27:23, skipping insertion in model container [2024-11-05 02:27:23,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 02:27:22" (2/3) ... [2024-11-05 02:27:23,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7facc20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 02:27:23, skipping insertion in model container [2024-11-05 02:27:23,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 02:27:23" (3/3) ... [2024-11-05 02:27:23,907 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness_negated.i [2024-11-05 02:27:23,920 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 02:27:23,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 02:27:23,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 02:27:23,983 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;@1afc5f52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 02:27:23,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 02:27:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 02:27:24,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-05 02:27:24,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:27:24,004 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:27:24,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:27:24,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:27:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash -722894815, now seen corresponding path program 1 times [2024-11-05 02:27:24,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:27:24,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179007778] [2024-11-05 02:27:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:27:24,023 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:24,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:27:24,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:27:24,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-05 02:27:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:27:24,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 02:27:24,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:27:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-05 02:27:24,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:27:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-05 02:27:24,421 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:27:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179007778] [2024-11-05 02:27:24,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [179007778] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:27:24,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:27:24,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 02:27:24,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844450080] [2024-11-05 02:27:24,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:27:24,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 02:27:24,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:27:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 02:27:24,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:27:24,457 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-05 02:27:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:27:24,497 INFO L93 Difference]: Finished difference Result 188 states and 271 transitions. [2024-11-05 02:27:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 02:27:24,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2024-11-05 02:27:24,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:27:24,507 INFO L225 Difference]: With dead ends: 188 [2024-11-05 02:27:24,507 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 02:27:24,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 02:27:24,516 INFO L432 NwaCegarLoop]: 127 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, 127 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 [2024-11-05 02:27:24,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 02:27:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 02:27:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-05 02:27:24,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-05 02:27:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 122 transitions. [2024-11-05 02:27:24,573 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 122 transitions. Word has length 84 [2024-11-05 02:27:24,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:27:24,573 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 122 transitions. [2024-11-05 02:27:24,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-05 02:27:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2024-11-05 02:27:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-05 02:27:24,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:27:24,580 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:27:24,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-05 02:27:24,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:24,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:27:24,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:27:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash -723996839, now seen corresponding path program 1 times [2024-11-05 02:27:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:27:24,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432646196] [2024-11-05 02:27:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:27:24,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:27:24,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:27:24,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-05 02:27:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:27:25,020 WARN L253 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-05 02:27:25,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:27:25,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:27:25,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:25,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:27:25,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:25,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:27:25,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:25,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-05 02:27:31,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:27:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-05 02:27:31,914 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:27:31,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432646196] [2024-11-05 02:27:31,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [432646196] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:27:31,915 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:27:31,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 6] imperfect sequences [] total 22 [2024-11-05 02:27:31,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659014009] [2024-11-05 02:27:31,915 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:27:31,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-05 02:27:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:27:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-05 02:27:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-05 02:27:31,919 INFO L87 Difference]: Start difference. First operand 93 states and 122 transitions. Second operand has 22 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 14 states have internal predecessors, (62), 9 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:27:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:27:36,543 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2024-11-05 02:27:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-05 02:27:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 14 states have internal predecessors, (62), 9 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) Word has length 84 [2024-11-05 02:27:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:27:36,554 INFO L225 Difference]: With dead ends: 196 [2024-11-05 02:27:36,554 INFO L226 Difference]: Without dead ends: 194 [2024-11-05 02:27:36,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 138 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2024-11-05 02:27:36,556 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 88 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-05 02:27:36,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1222 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-05 02:27:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-05 02:27:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2024-11-05 02:27:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 120 states have (on average 1.25) internal successors, (150), 124 states have internal predecessors, (150), 48 states have call successors, (48), 17 states have call predecessors, (48), 19 states have return successors, (52), 46 states have call predecessors, (52), 46 states have call successors, (52) [2024-11-05 02:27:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 250 transitions. [2024-11-05 02:27:36,625 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 250 transitions. Word has length 84 [2024-11-05 02:27:36,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:27:36,626 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 250 transitions. [2024-11-05 02:27:36,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 14 states have internal predecessors, (62), 9 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:27:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 250 transitions. [2024-11-05 02:27:36,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-05 02:27:36,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:27:36,631 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-05 02:27:36,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-05 02:27:36,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:36,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:27:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:27:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -378711019, now seen corresponding path program 1 times [2024-11-05 02:27:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:27:36,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098363119] [2024-11-05 02:27:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:27:36,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:36,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:27:36,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:27:36,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-05 02:27:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:27:37,002 WARN L253 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-11-05 02:27:37,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:27:37,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:27:37,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:37,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-11-05 02:27:37,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:27:37,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:37,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:27:37,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:37,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-05 02:27:41,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:27:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-05 02:27:42,376 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:27:42,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098363119] [2024-11-05 02:27:42,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1098363119] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:27:42,376 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:27:42,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 7] imperfect sequences [] total 26 [2024-11-05 02:27:42,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502903858] [2024-11-05 02:27:42,377 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:27:42,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-05 02:27:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:27:42,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-05 02:27:42,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2024-11-05 02:27:42,379 INFO L87 Difference]: Start difference. First operand 188 states and 250 transitions. Second operand has 26 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 18 states have internal predecessors, (69), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:27:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:27:48,400 INFO L93 Difference]: Finished difference Result 217 states and 286 transitions. [2024-11-05 02:27:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-05 02:27:48,401 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 18 states have internal predecessors, (69), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) Word has length 86 [2024-11-05 02:27:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:27:48,404 INFO L225 Difference]: With dead ends: 217 [2024-11-05 02:27:48,404 INFO L226 Difference]: Without dead ends: 215 [2024-11-05 02:27:48,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2024-11-05 02:27:48,406 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 71 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-05 02:27:48,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1477 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-05 02:27:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-05 02:27:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 190. [2024-11-05 02:27:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 122 states have (on average 1.2459016393442623) internal successors, (152), 126 states have internal predecessors, (152), 48 states have call successors, (48), 17 states have call predecessors, (48), 19 states have return successors, (52), 46 states have call predecessors, (52), 46 states have call successors, (52) [2024-11-05 02:27:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2024-11-05 02:27:48,446 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 86 [2024-11-05 02:27:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:27:48,446 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2024-11-05 02:27:48,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 18 states have internal predecessors, (69), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:27:48,447 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2024-11-05 02:27:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-05 02:27:48,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:27:48,451 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-05 02:27:48,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-05 02:27:48,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:48,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:27:48,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:27:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash 676777410, now seen corresponding path program 1 times [2024-11-05 02:27:48,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:27:48,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605715841] [2024-11-05 02:27:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:27:48,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:27:48,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:27:48,654 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:27:48,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-05 02:27:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:27:48,809 WARN L253 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-11-05 02:27:48,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:27:48,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:27:48,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:48,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:27:48,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:27:49,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:27:49,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:49,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:27:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-05 02:27:53,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:27:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-05 02:27:54,193 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:27:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605715841] [2024-11-05 02:27:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [605715841] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:27:54,194 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:27:54,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24, 9] imperfect sequences [] total 30 [2024-11-05 02:27:54,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548869916] [2024-11-05 02:27:54,194 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:27:54,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-05 02:27:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:27:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-05 02:27:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2024-11-05 02:27:54,196 INFO L87 Difference]: Start difference. First operand 190 states and 252 transitions. Second operand has 30 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 22 states have internal predecessors, (73), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:28:00,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:00,973 INFO L93 Difference]: Finished difference Result 231 states and 308 transitions. [2024-11-05 02:28:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-05 02:28:00,974 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 22 states have internal predecessors, (73), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) Word has length 88 [2024-11-05 02:28:00,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:00,977 INFO L225 Difference]: With dead ends: 231 [2024-11-05 02:28:00,977 INFO L226 Difference]: Without dead ends: 229 [2024-11-05 02:28:00,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 138 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2024-11-05 02:28:00,981 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 97 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:00,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1548 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-05 02:28:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-05 02:28:01,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 192. [2024-11-05 02:28:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 128 states have internal predecessors, (154), 48 states have call successors, (48), 17 states have call predecessors, (48), 19 states have return successors, (52), 46 states have call predecessors, (52), 46 states have call successors, (52) [2024-11-05 02:28:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 254 transitions. [2024-11-05 02:28:01,019 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 254 transitions. Word has length 88 [2024-11-05 02:28:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:01,020 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 254 transitions. [2024-11-05 02:28:01,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 22 states have internal predecessors, (73), 9 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:28:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 254 transitions. [2024-11-05 02:28:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-05 02:28:01,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:01,022 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-05 02:28:01,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-05 02:28:01,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:01,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:01,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2037920274, now seen corresponding path program 1 times [2024-11-05 02:28:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664299409] [2024-11-05 02:28:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:01,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:01,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:01,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:01,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-05 02:28:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:01,379 WARN L253 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-05 02:28:01,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:01,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:01,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:01,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:01,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:01,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:28:01,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:28:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-05 02:28:05,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-05 02:28:05,509 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:05,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664299409] [2024-11-05 02:28:05,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1664299409] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 02:28:05,509 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 02:28:05,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 3] imperfect sequences [] total 19 [2024-11-05 02:28:05,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635379688] [2024-11-05 02:28:05,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:05,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-05 02:28:05,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:05,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-05 02:28:05,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-05 02:28:05,511 INFO L87 Difference]: Start difference. First operand 192 states and 254 transitions. Second operand has 19 states, 16 states have (on average 4.375) internal successors, (70), 14 states have internal predecessors, (70), 9 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:28:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:10,024 INFO L93 Difference]: Finished difference Result 373 states and 502 transitions. [2024-11-05 02:28:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-05 02:28:10,025 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 4.375) internal successors, (70), 14 states have internal predecessors, (70), 9 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) Word has length 89 [2024-11-05 02:28:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:10,028 INFO L225 Difference]: With dead ends: 373 [2024-11-05 02:28:10,028 INFO L226 Difference]: Without dead ends: 209 [2024-11-05 02:28:10,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2024-11-05 02:28:10,031 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 71 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:10,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1012 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-05 02:28:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-05 02:28:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2024-11-05 02:28:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 128 states have (on average 1.25) internal successors, (160), 132 states have internal predecessors, (160), 48 states have call successors, (48), 17 states have call predecessors, (48), 19 states have return successors, (52), 46 states have call predecessors, (52), 46 states have call successors, (52) [2024-11-05 02:28:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2024-11-05 02:28:10,073 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 89 [2024-11-05 02:28:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:10,073 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2024-11-05 02:28:10,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 4.375) internal successors, (70), 14 states have internal predecessors, (70), 9 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (20), 10 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-05 02:28:10,073 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2024-11-05 02:28:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-05 02:28:10,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:10,075 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:10,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-05 02:28:10,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:10,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:10,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash -940993997, now seen corresponding path program 1 times [2024-11-05 02:28:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:10,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073579434] [2024-11-05 02:28:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:10,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:10,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:10,278 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:10,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-05 02:28:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:10,454 WARN L253 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 146 conjuncts are in the unsatisfiable core [2024-11-05 02:28:10,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:10,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:10,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:10,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:10,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-05 02:28:10,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:28:10,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-05 02:28:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-05 02:28:11,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:13,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1646 treesize of output 1630 [2024-11-05 02:28:13,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:13,848 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-05 02:28:13,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 234 [2024-11-05 02:28:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-05 02:28:14,292 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:14,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073579434] [2024-11-05 02:28:14,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2073579434] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 02:28:14,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 02:28:14,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-11-05 02:28:14,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486179359] [2024-11-05 02:28:14,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 02:28:14,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-05 02:28:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:14,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-05 02:28:14,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-05 02:28:14,295 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-05 02:28:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:15,162 INFO L93 Difference]: Finished difference Result 207 states and 269 transitions. [2024-11-05 02:28:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-05 02:28:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 100 [2024-11-05 02:28:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:15,165 INFO L225 Difference]: With dead ends: 207 [2024-11-05 02:28:15,165 INFO L226 Difference]: Without dead ends: 105 [2024-11-05 02:28:15,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-05 02:28:15,166 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 10 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:15,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 547 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 02:28:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-05 02:28:15,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-05 02:28:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 71 states have internal predecessors, (85), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-05 02:28:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2024-11-05 02:28:15,178 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 100 [2024-11-05 02:28:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:15,179 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2024-11-05 02:28:15,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-05 02:28:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2024-11-05 02:28:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-05 02:28:15,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:15,180 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:15,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-05 02:28:15,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:15,381 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:15,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 471584145, now seen corresponding path program 1 times [2024-11-05 02:28:15,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:15,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358451840] [2024-11-05 02:28:15,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:15,382 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:15,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:15,383 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:15,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-05 02:28:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:15,562 WARN L253 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 166 conjuncts are in the unsatisfiable core [2024-11-05 02:28:15,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:15,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:15,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-05 02:28:15,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:15,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:15,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:15,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-05 02:28:15,853 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:28:15,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:28:15,875 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:28:15,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-05 02:28:15,905 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:28:15,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:28:16,280 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:28:16,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 159 treesize of output 109 [2024-11-05 02:28:16,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-05 02:28:16,343 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-05 02:28:16,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 71 [2024-11-05 02:28:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 54 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-05 02:28:22,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-05 02:28:23,540 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358451840] [2024-11-05 02:28:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1358451840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:28:23,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:28:23,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6] total 24 [2024-11-05 02:28:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36711102] [2024-11-05 02:28:23,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:28:23,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-05 02:28:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-05 02:28:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-05 02:28:23,542 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 24 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 9 states have call successors, (26), 5 states have call predecessors, (26), 9 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-05 02:28:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:31,415 INFO L93 Difference]: Finished difference Result 294 states and 388 transitions. [2024-11-05 02:28:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-05 02:28:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 9 states have call successors, (26), 5 states have call predecessors, (26), 9 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 102 [2024-11-05 02:28:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:31,418 INFO L225 Difference]: With dead ends: 294 [2024-11-05 02:28:31,418 INFO L226 Difference]: Without dead ends: 208 [2024-11-05 02:28:31,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 176 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2024-11-05 02:28:31,420 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 87 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:31,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1341 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-05 02:28:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-05 02:28:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 111. [2024-11-05 02:28:31,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 76 states have internal predecessors, (89), 25 states have call successors, (25), 10 states have call predecessors, (25), 12 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2024-11-05 02:28:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2024-11-05 02:28:31,445 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 102 [2024-11-05 02:28:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:31,446 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2024-11-05 02:28:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 9 states have call successors, (26), 5 states have call predecessors, (26), 9 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-05 02:28:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2024-11-05 02:28:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-05 02:28:31,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:31,447 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:31,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-05 02:28:31,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:31,648 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:31,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1955320525, now seen corresponding path program 1 times [2024-11-05 02:28:31,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480310627] [2024-11-05 02:28:31,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:31,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:31,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:31,651 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:31,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-05 02:28:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:31,840 WARN L253 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 172 conjuncts are in the unsatisfiable core [2024-11-05 02:28:31,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:31,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:31,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:31,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-05 02:28:32,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:32,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:32,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:32,157 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:28:32,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:28:32,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:32,216 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:28:32,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:28:32,245 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:28:32,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-05 02:28:32,498 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-05 02:28:32,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-05 02:28:32,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-05 02:28:32,568 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:28:32,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 106 [2024-11-05 02:28:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:32,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 63 [2024-11-05 02:28:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 54 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-05 02:28:37,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 02:28:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-05 02:28:39,028 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 02:28:39,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480310627] [2024-11-05 02:28:39,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [480310627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 02:28:39,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 02:28:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8] total 25 [2024-11-05 02:28:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015767543] [2024-11-05 02:28:39,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 02:28:39,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-05 02:28:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 02:28:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-05 02:28:39,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2024-11-05 02:28:39,030 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 25 states, 22 states have (on average 5.5) internal successors, (121), 21 states have internal predecessors, (121), 9 states have call successors, (26), 6 states have call predecessors, (26), 7 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-05 02:28:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 02:28:43,928 INFO L93 Difference]: Finished difference Result 301 states and 397 transitions. [2024-11-05 02:28:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-05 02:28:43,929 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 5.5) internal successors, (121), 21 states have internal predecessors, (121), 9 states have call successors, (26), 6 states have call predecessors, (26), 7 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) Word has length 104 [2024-11-05 02:28:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 02:28:43,931 INFO L225 Difference]: With dead ends: 301 [2024-11-05 02:28:43,931 INFO L226 Difference]: Without dead ends: 208 [2024-11-05 02:28:43,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2024-11-05 02:28:43,932 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 139 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-05 02:28:43,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 957 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-05 02:28:43,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-05 02:28:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 111. [2024-11-05 02:28:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 76 states have internal predecessors, (88), 25 states have call successors, (25), 10 states have call predecessors, (25), 12 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2024-11-05 02:28:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2024-11-05 02:28:43,959 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 104 [2024-11-05 02:28:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 02:28:43,960 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2024-11-05 02:28:43,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 5.5) internal successors, (121), 21 states have internal predecessors, (121), 9 states have call successors, (26), 6 states have call predecessors, (26), 7 states have return successors, (23), 8 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-05 02:28:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2024-11-05 02:28:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-05 02:28:43,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 02:28:43,964 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 02:28:43,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-05 02:28:44,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:44,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 02:28:44,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 02:28:44,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1503211846, now seen corresponding path program 1 times [2024-11-05 02:28:44,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 02:28:44,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209104758] [2024-11-05 02:28:44,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 02:28:44,165 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-05 02:28:44,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-05 02:28:44,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-05 02:28:44,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-05 02:28:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 02:28:44,367 WARN L253 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-11-05 02:28:44,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 02:28:44,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-05 02:28:44,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:44,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-05 02:28:44,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:44,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-05 02:28:44,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-05 02:28:44,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-11-05 02:28:44,693 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-05 02:28:44,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-05 02:28:44,731 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-05 02:28:44,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-05 02:28:44,758 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-05 02:28:44,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-05 02:28:45,085 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-05 02:28:45,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 106 [2024-11-05 02:28:45,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:45,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-05 02:28:45,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 63 [2024-11-05 02:28:45,151 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-05 02:28:45,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-05 02:28:45,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38