/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-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/byte_add_2-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:40:48,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:40:48,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 05:40:48,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:40:48,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:40:48,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:40:48,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:40:48,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:40:48,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:40:48,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:40:48,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:40:48,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:40:48,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:40:48,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:40:48,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:40:48,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:40:48,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:40:48,541 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:40:48,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:40:48,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:40:48,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:40:48,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:40:48,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:40:48,546 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:40:48,546 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:40:48,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:40:48,547 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:40:48,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:40:48,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:40:48,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:40:48,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:40:48,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:40:48,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:40:48,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:40:48,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:40:48,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:40:48,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:40:48,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:40:48,553 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:40:48,553 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:40:48,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:40:48,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:40:48,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:40:48,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:40:48,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:48,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:40:48,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:40:48,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:40:48,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:40:48,822 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:40:48,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/byte_add_2-2.i [2024-11-03 05:40:50,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:40:50,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:40:50,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/byte_add_2-2.i [2024-11-03 05:40:50,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11a5741e/fdf3e8de0a6e4480bc13575762fa1706/FLAGe8bd50f3d [2024-11-03 05:40:50,428 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11a5741e/fdf3e8de0a6e4480bc13575762fa1706 [2024-11-03 05:40:50,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:40:50,431 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:40:50,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:40:50,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:40:50,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:40:50,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acbd2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50, skipping insertion in model container [2024-11-03 05:40:50,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:40:50,642 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/byte_add_2-2.i[1168,1181] [2024-11-03 05:40:50,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:40:50,694 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:40:50,708 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/byte_add_2-2.i[1168,1181] [2024-11-03 05:40:50,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:40:50,747 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:40:50,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50 WrapperNode [2024-11-03 05:40:50,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:40:50,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:40:50,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:40:50,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:40:50,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,784 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 123 [2024-11-03 05:40:50,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:40:50,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:40:50,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:40:50,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:40:50,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,808 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 05:40:50,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:40:50,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:40:50,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:40:50,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:40:50,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (1/1) ... [2024-11-03 05:40:50,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:40:50,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:40:50,891 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) [2024-11-03 05:40:50,894 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 [2024-11-03 05:40:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:40:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:40:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:40:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:40:51,000 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:40:51,009 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:40:51,322 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-03 05:40:51,322 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:40:51,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:40:51,338 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 05:40:51,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:40:51 BoogieIcfgContainer [2024-11-03 05:40:51,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:40:51,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:40:51,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:40:51,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:40:51,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:40:50" (1/3) ... [2024-11-03 05:40:51,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7bf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:40:51, skipping insertion in model container [2024-11-03 05:40:51,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50" (2/3) ... [2024-11-03 05:40:51,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7bf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:40:51, skipping insertion in model container [2024-11-03 05:40:51,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:40:51" (3/3) ... [2024-11-03 05:40:51,346 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add_2-2.i [2024-11-03 05:40:51,360 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:40:51,360 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:40:51,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:40:51,420 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;@3b007076, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:40:51,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:40:51,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.775) internal successors, (71), 41 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:51,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 05:40:51,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:51,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:40:51,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:51,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash 255061167, now seen corresponding path program 1 times [2024-11-03 05:40:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:51,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760909210] [2024-11-03 05:40:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:51,446 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:51,448 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) [2024-11-03 05:40:51,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 05:40:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:51,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 05:40:51,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:51,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:51,566 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:51,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760909210] [2024-11-03 05:40:51,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [760909210] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:51,568 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:51,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 05:40:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322321348] [2024-11-03 05:40:51,570 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:51,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 05:40:51,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:51,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 05:40:51,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 05:40:51,590 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.775) internal successors, (71), 41 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:51,605 INFO L93 Difference]: Finished difference Result 57 states and 92 transitions. [2024-11-03 05:40:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 05:40:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-03 05:40:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:51,612 INFO L225 Difference]: With dead ends: 57 [2024-11-03 05:40:51,613 INFO L226 Difference]: Without dead ends: 38 [2024-11-03 05:40:51,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 05:40:51,618 INFO L432 NwaCegarLoop]: 68 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, 68 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 [2024-11-03 05:40:51,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:40:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-03 05:40:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-03 05:40:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 37 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 64 transitions. [2024-11-03 05:40:51,661 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 64 transitions. Word has length 12 [2024-11-03 05:40:51,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:51,662 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 64 transitions. [2024-11-03 05:40:51,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:51,663 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2024-11-03 05:40:51,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 05:40:51,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:51,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:40:51,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 05:40:51,867 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 [2024-11-03 05:40:51,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:51,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1803477009, now seen corresponding path program 1 times [2024-11-03 05:40:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416105550] [2024-11-03 05:40:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:51,869 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:51,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:51,871 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) [2024-11-03 05:40:51,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 05:40:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:51,941 WARN L253 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-03 05:40:51,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:52,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:52,173 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:52,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416105550] [2024-11-03 05:40:52,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [416105550] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:52,173 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:52,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2024-11-03 05:40:52,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212068897] [2024-11-03 05:40:52,174 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:52,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 05:40:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 05:40:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:40:52,178 INFO L87 Difference]: Start difference. First operand 38 states and 64 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:52,603 INFO L93 Difference]: Finished difference Result 141 states and 255 transitions. [2024-11-03 05:40:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 05:40:52,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-03 05:40:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:52,606 INFO L225 Difference]: With dead ends: 141 [2024-11-03 05:40:52,606 INFO L226 Difference]: Without dead ends: 113 [2024-11-03 05:40:52,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-11-03 05:40:52,608 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 232 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:52,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 148 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:40:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-03 05:40:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-11-03 05:40:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.67) internal successors, (167), 100 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 167 transitions. [2024-11-03 05:40:52,626 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 167 transitions. Word has length 12 [2024-11-03 05:40:52,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:52,626 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 167 transitions. [2024-11-03 05:40:52,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 167 transitions. [2024-11-03 05:40:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-03 05:40:52,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:52,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:40:52,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 05:40:52,833 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 [2024-11-03 05:40:52,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:52,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:52,835 INFO L85 PathProgramCache]: Analyzing trace with hash 583572890, now seen corresponding path program 1 times [2024-11-03 05:40:52,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:52,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428484072] [2024-11-03 05:40:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:52,838 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) [2024-11-03 05:40:52,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 05:40:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:52,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-03 05:40:52,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:52,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:52,958 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:52,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428484072] [2024-11-03 05:40:52,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1428484072] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:52,958 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 05:40:52,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899318781] [2024-11-03 05:40:52,959 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:52,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 05:40:52,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:52,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 05:40:52,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 05:40:52,960 INFO L87 Difference]: Start difference. First operand 101 states and 167 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:52,971 INFO L93 Difference]: Finished difference Result 112 states and 182 transitions. [2024-11-03 05:40:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:40:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-03 05:40:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:52,973 INFO L225 Difference]: With dead ends: 112 [2024-11-03 05:40:52,973 INFO L226 Difference]: Without dead ends: 60 [2024-11-03 05:40:52,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 05:40:52,974 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:52,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 63 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:40:52,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-03 05:40:52,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-03 05:40:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2024-11-03 05:40:52,987 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 14 [2024-11-03 05:40:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:52,987 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2024-11-03 05:40:52,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2024-11-03 05:40:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-03 05:40:52,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:52,991 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:40:52,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 05:40:53,192 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 [2024-11-03 05:40:53,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:53,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1444715377, now seen corresponding path program 1 times [2024-11-03 05:40:53,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:53,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449700663] [2024-11-03 05:40:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:53,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:53,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:53,200 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) [2024-11-03 05:40:53,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 05:40:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:53,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-03 05:40:53,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 05:40:53,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 05:40:53,444 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449700663] [2024-11-03 05:40:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [449700663] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:53,445 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2024-11-03 05:40:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197259971] [2024-11-03 05:40:53,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:53,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 05:40:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 05:40:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-03 05:40:53,447 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:53,763 INFO L93 Difference]: Finished difference Result 225 states and 345 transitions. [2024-11-03 05:40:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 05:40:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-03 05:40:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:53,765 INFO L225 Difference]: With dead ends: 225 [2024-11-03 05:40:53,765 INFO L226 Difference]: Without dead ends: 176 [2024-11-03 05:40:53,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:40:53,766 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 310 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:53,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 367 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 05:40:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-03 05:40:53,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2024-11-03 05:40:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.5714285714285714) internal successors, (165), 105 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 165 transitions. [2024-11-03 05:40:53,780 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 165 transitions. Word has length 38 [2024-11-03 05:40:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:53,781 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 165 transitions. [2024-11-03 05:40:53,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 165 transitions. [2024-11-03 05:40:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-03 05:40:53,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:53,782 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:40:53,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 05:40:53,984 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 [2024-11-03 05:40:53,984 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:53,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1585263987, now seen corresponding path program 1 times [2024-11-03 05:40:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95979834] [2024-11-03 05:40:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:53,986 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:53,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:53,987 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) [2024-11-03 05:40:53,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 05:40:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:54,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-03 05:40:54,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:54,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:54,434 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:54,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95979834] [2024-11-03 05:40:54,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [95979834] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:40:54,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:40:54,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 12 [2024-11-03 05:40:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049510062] [2024-11-03 05:40:54,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:40:54,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 05:40:54,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 05:40:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-03 05:40:54,436 INFO L87 Difference]: Start difference. First operand 106 states and 165 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:54,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:54,873 INFO L93 Difference]: Finished difference Result 331 states and 535 transitions. [2024-11-03 05:40:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 05:40:54,873 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-03 05:40:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:54,875 INFO L225 Difference]: With dead ends: 331 [2024-11-03 05:40:54,875 INFO L226 Difference]: Without dead ends: 238 [2024-11-03 05:40:54,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:40:54,876 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 340 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:54,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 67 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 05:40:54,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-03 05:40:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2024-11-03 05:40:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.4097560975609755) internal successors, (289), 205 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 289 transitions. [2024-11-03 05:40:54,905 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 289 transitions. Word has length 38 [2024-11-03 05:40:54,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:54,905 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 289 transitions. [2024-11-03 05:40:54,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:54,906 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 289 transitions. [2024-11-03 05:40:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-03 05:40:54,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:54,907 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:40:54,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 05:40:55,109 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 [2024-11-03 05:40:55,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:55,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash 116217905, now seen corresponding path program 1 times [2024-11-03 05:40:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:55,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445133605] [2024-11-03 05:40:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:55,111 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:55,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:55,112 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) [2024-11-03 05:40:55,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 05:40:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:55,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-03 05:40:55,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 05:40:55,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 05:40:55,341 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:55,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445133605] [2024-11-03 05:40:55,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1445133605] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:55,341 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:55,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2024-11-03 05:40:55,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625371555] [2024-11-03 05:40:55,342 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:55,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 05:40:55,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 05:40:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:40:55,343 INFO L87 Difference]: Start difference. First operand 206 states and 289 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:55,563 INFO L93 Difference]: Finished difference Result 734 states and 1041 transitions. [2024-11-03 05:40:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 05:40:55,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-03 05:40:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:55,566 INFO L225 Difference]: With dead ends: 734 [2024-11-03 05:40:55,566 INFO L226 Difference]: Without dead ends: 548 [2024-11-03 05:40:55,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-03 05:40:55,569 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 188 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:55,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 117 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 05:40:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-03 05:40:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 233. [2024-11-03 05:40:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.3663793103448276) internal successors, (317), 232 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 317 transitions. [2024-11-03 05:40:55,602 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 317 transitions. Word has length 38 [2024-11-03 05:40:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:55,602 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 317 transitions. [2024-11-03 05:40:55,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 317 transitions. [2024-11-03 05:40:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-03 05:40:55,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:55,604 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:40:55,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 05:40:55,804 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 [2024-11-03 05:40:55,805 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:55,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash 388021148, now seen corresponding path program 1 times [2024-11-03 05:40:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:55,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958149572] [2024-11-03 05:40:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:55,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:55,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:55,807 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) [2024-11-03 05:40:55,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 05:40:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:55,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-03 05:40:55,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 05:40:56,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 05:40:56,127 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:56,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958149572] [2024-11-03 05:40:56,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [958149572] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:40:56,128 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:40:56,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2024-11-03 05:40:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610845483] [2024-11-03 05:40:56,128 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:40:56,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-03 05:40:56,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:56,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-03 05:40:56,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-03 05:40:56,131 INFO L87 Difference]: Start difference. First operand 233 states and 317 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:40:56,729 INFO L93 Difference]: Finished difference Result 913 states and 1294 transitions. [2024-11-03 05:40:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 05:40:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-03 05:40:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:40:56,733 INFO L225 Difference]: With dead ends: 913 [2024-11-03 05:40:56,733 INFO L226 Difference]: Without dead ends: 726 [2024-11-03 05:40:56,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-03 05:40:56,735 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 486 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 05:40:56,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 332 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 05:40:56,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-03 05:40:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 688. [2024-11-03 05:40:56,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.3770014556040757) internal successors, (946), 687 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 946 transitions. [2024-11-03 05:40:56,766 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 946 transitions. Word has length 40 [2024-11-03 05:40:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:40:56,767 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 946 transitions. [2024-11-03 05:40:56,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:40:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 946 transitions. [2024-11-03 05:40:56,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-03 05:40:56,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:40:56,770 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:40:56,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-03 05:40:56,970 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 [2024-11-03 05:40:56,971 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:40:56,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:40:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1280602341, now seen corresponding path program 1 times [2024-11-03 05:40:56,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:40:56,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604452278] [2024-11-03 05:40:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:40:56,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:40:56,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:40:56,974 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) [2024-11-03 05:40:56,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-03 05:40:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:40:57,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-03 05:40:57,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:40:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:57,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:40:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:40:57,668 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:40:57,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604452278] [2024-11-03 05:40:57,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1604452278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:40:57,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:40:57,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 16 [2024-11-03 05:40:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809817846] [2024-11-03 05:40:57,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:40:57,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 05:40:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:40:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 05:40:57,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-03 05:40:57,671 INFO L87 Difference]: Start difference. First operand 688 states and 946 transitions. Second operand has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:02,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:41:02,932 INFO L93 Difference]: Finished difference Result 1603 states and 2201 transitions. [2024-11-03 05:41:02,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-03 05:41:02,933 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-03 05:41:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:41:02,936 INFO L225 Difference]: With dead ends: 1603 [2024-11-03 05:41:02,936 INFO L226 Difference]: Without dead ends: 1023 [2024-11-03 05:41:02,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2024-11-03 05:41:02,938 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 485 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:41:02,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 295 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 05:41:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-03 05:41:02,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 643. [2024-11-03 05:41:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.3473520249221185) internal successors, (865), 642 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:02,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 865 transitions. [2024-11-03 05:41:02,974 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 865 transitions. Word has length 42 [2024-11-03 05:41:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:41:02,975 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 865 transitions. [2024-11-03 05:41:02,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:02,975 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 865 transitions. [2024-11-03 05:41:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-03 05:41:02,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:41:02,976 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:41:02,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-03 05:41:03,178 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 [2024-11-03 05:41:03,180 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:41:03,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:41:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1538767779, now seen corresponding path program 1 times [2024-11-03 05:41:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:41:03,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842389622] [2024-11-03 05:41:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:41:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:41:03,197 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) [2024-11-03 05:41:03,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-03 05:41:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:41:03,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-03 05:41:03,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:41:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:03,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:41:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:03,921 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:41:03,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842389622] [2024-11-03 05:41:03,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1842389622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:41:03,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:41:03,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2024-11-03 05:41:03,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137776496] [2024-11-03 05:41:03,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:41:03,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 05:41:03,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:41:03,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 05:41:03,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-03 05:41:03,922 INFO L87 Difference]: Start difference. First operand 643 states and 865 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:41:04,753 INFO L93 Difference]: Finished difference Result 1235 states and 1689 transitions. [2024-11-03 05:41:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 05:41:04,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-03 05:41:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:41:04,756 INFO L225 Difference]: With dead ends: 1235 [2024-11-03 05:41:04,756 INFO L226 Difference]: Without dead ends: 777 [2024-11-03 05:41:04,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2024-11-03 05:41:04,757 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 258 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 05:41:04,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 142 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 05:41:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-03 05:41:04,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 717. [2024-11-03 05:41:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.3365921787709498) internal successors, (957), 716 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 957 transitions. [2024-11-03 05:41:04,793 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 957 transitions. Word has length 42 [2024-11-03 05:41:04,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:41:04,793 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 957 transitions. [2024-11-03 05:41:04,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 957 transitions. [2024-11-03 05:41:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:41:04,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:41:04,794 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:41:04,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-03 05:41:04,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:04,995 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:41:04,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:41:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1822068338, now seen corresponding path program 1 times [2024-11-03 05:41:04,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:41:04,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645027575] [2024-11-03 05:41:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:41:04,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:41:05,000 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:41:05,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-03 05:41:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:41:05,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-03 05:41:05,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:41:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:05,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:41:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:06,087 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:41:06,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645027575] [2024-11-03 05:41:06,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [645027575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:41:06,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:41:06,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6] total 22 [2024-11-03 05:41:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689417209] [2024-11-03 05:41:06,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:41:06,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-03 05:41:06,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:41:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-03 05:41:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-03 05:41:06,089 INFO L87 Difference]: Start difference. First operand 717 states and 957 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:41:08,978 INFO L93 Difference]: Finished difference Result 1404 states and 1909 transitions. [2024-11-03 05:41:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-03 05:41:08,979 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-03 05:41:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:41:08,982 INFO L225 Difference]: With dead ends: 1404 [2024-11-03 05:41:08,982 INFO L226 Difference]: Without dead ends: 787 [2024-11-03 05:41:08,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1291 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=830, Invalid=4140, Unknown=0, NotChecked=0, Total=4970 [2024-11-03 05:41:08,986 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 845 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:41:08,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 234 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 05:41:08,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-03 05:41:09,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 630. [2024-11-03 05:41:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 629 states have (on average 1.2829888712241653) internal successors, (807), 629 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 807 transitions. [2024-11-03 05:41:09,030 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 807 transitions. Word has length 44 [2024-11-03 05:41:09,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:41:09,030 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 807 transitions. [2024-11-03 05:41:09,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:09,031 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 807 transitions. [2024-11-03 05:41:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-03 05:41:09,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:41:09,032 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:41:09,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-03 05:41:09,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:09,234 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:41:09,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:41:09,235 INFO L85 PathProgramCache]: Analyzing trace with hash 484210542, now seen corresponding path program 1 times [2024-11-03 05:41:09,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:41:09,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144084134] [2024-11-03 05:41:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:41:09,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:09,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:41:09,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:41:09,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-03 05:41:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:41:09,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-03 05:41:09,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:41:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:12,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:41:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:41:14,314 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:41:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144084134] [2024-11-03 05:41:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1144084134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:41:14,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:41:14,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23] total 48 [2024-11-03 05:41:14,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778748672] [2024-11-03 05:41:14,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:41:14,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-03 05:41:14,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:41:14,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-03 05:41:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=2101, Unknown=0, NotChecked=0, Total=2256 [2024-11-03 05:41:14,317 INFO L87 Difference]: Start difference. First operand 630 states and 807 transitions. Second operand has 48 states, 48 states have (on average 2.875) internal successors, (138), 48 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:41:33,220 INFO L93 Difference]: Finished difference Result 1247 states and 1611 transitions. [2024-11-03 05:41:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-11-03 05:41:33,220 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.875) internal successors, (138), 48 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-03 05:41:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:41:33,224 INFO L225 Difference]: With dead ends: 1247 [2024-11-03 05:41:33,225 INFO L226 Difference]: Without dead ends: 1130 [2024-11-03 05:41:33,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4487 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=1997, Invalid=17185, Unknown=0, NotChecked=0, Total=19182 [2024-11-03 05:41:33,229 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1450 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 8863 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 8941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 8863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:41:33,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 3704 Invalid, 8941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 8863 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-03 05:41:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-11-03 05:41:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 823. [2024-11-03 05:41:33,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.29683698296837) internal successors, (1066), 822 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1066 transitions. [2024-11-03 05:41:33,308 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1066 transitions. Word has length 70 [2024-11-03 05:41:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:41:33,308 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1066 transitions. [2024-11-03 05:41:33,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.875) internal successors, (138), 48 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1066 transitions. [2024-11-03 05:41:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-03 05:41:33,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:41:33,310 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:41:33,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-03 05:41:33,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:33,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:41:33,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:41:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1275590724, now seen corresponding path program 1 times [2024-11-03 05:41:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:41:33,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081379249] [2024-11-03 05:41:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:41:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:41:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:41:33,514 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:41:33,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-03 05:41:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:41:33,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-03 05:41:33,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:41:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 33 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 05:41:35,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:41:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 05:41:35,926 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:41:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081379249] [2024-11-03 05:41:35,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2081379249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:41:35,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:41:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6] total 24 [2024-11-03 05:41:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649976648] [2024-11-03 05:41:35,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:41:35,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-03 05:41:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:41:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-03 05:41:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=457, Unknown=1, NotChecked=0, Total=552 [2024-11-03 05:41:35,928 INFO L87 Difference]: Start difference. First operand 823 states and 1066 transitions. Second operand has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 05:41:38,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:40,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:45,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:47,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:48,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:50,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:56,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:57,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:58,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:41:59,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:00,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:03,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:07,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:08,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:09,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:11,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:12,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:13,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:14,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:15,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:17,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:18,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:19,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:21,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:22,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:24,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:25,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:26,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]