/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-79.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 02:55:14,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 02:55:14,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 02:55:14,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 02:55:14,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 02:55:14,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 02:55:14,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 02:55:14,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 02:55:14,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 02:55:14,510 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 02:55:14,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 02:55:14,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 02:55:14,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 02:55:14,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 02:55:14,512 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 02:55:14,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 02:55:14,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 02:55:14,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 02:55:14,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 02:55:14,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 02:55:14,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 02:55:14,515 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 02:55:14,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 02:55:14,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 02:55:14,515 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 02:55:14,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 02:55:14,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 02:55:14,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 02:55:14,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 02:55:14,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:55:14,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 02:55:14,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 02:55:14,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 02:55:14,517 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 02:55:14,517 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 02:55:14,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 02:55:14,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 02:55:14,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 02:55:14,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 02:55:14,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 02:55:14,524 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 02:55:14,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 02:55:14,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 02:55:14,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 02:55:14,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 02:55:14,732 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 02:55:14,733 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 02:55:14,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-79.i [2023-12-23 02:55:15,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 02:55:15,928 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 02:55:15,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-79.i [2023-12-23 02:55:15,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/179d430a1/228523a4f75340859ef53896f7134b99/FLAGbdd901048 [2023-12-23 02:55:15,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/179d430a1/228523a4f75340859ef53896f7134b99 [2023-12-23 02:55:15,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 02:55:15,950 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 02:55:15,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 02:55:15,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 02:55:15,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 02:55:15,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:55:15" (1/1) ... [2023-12-23 02:55:15,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2867036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:15, skipping insertion in model container [2023-12-23 02:55:15,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:55:15" (1/1) ... [2023-12-23 02:55:16,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 02:55:16,106 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-79.i[916,929] [2023-12-23 02:55:16,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:55:16,235 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 02:55:16,243 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-79.i[916,929] [2023-12-23 02:55:16,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:55:16,321 INFO L206 MainTranslator]: Completed translation [2023-12-23 02:55:16,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16 WrapperNode [2023-12-23 02:55:16,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 02:55:16,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 02:55:16,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 02:55:16,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 02:55:16,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,384 INFO L138 Inliner]: procedures = 27, calls = 116, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 552 [2023-12-23 02:55:16,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 02:55:16,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 02:55:16,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 02:55:16,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 02:55:16,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,421 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]. [2023-12-23 02:55:16,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 02:55:16,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 02:55:16,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 02:55:16,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 02:55:16,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (1/1) ... [2023-12-23 02:55:16,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:55:16,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 02:55:16,488 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) [2023-12-23 02:55:16,509 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 [2023-12-23 02:55:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 02:55:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 02:55:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 02:55:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 02:55:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 02:55:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 02:55:16,600 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 02:55:16,602 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 02:55:39,213 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 02:55:39,247 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 02:55:39,247 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 02:55:39,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:55:39 BoogieIcfgContainer [2023-12-23 02:55:39,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 02:55:39,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 02:55:39,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 02:55:39,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 02:55:39,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:55:15" (1/3) ... [2023-12-23 02:55:39,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb13a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:55:39, skipping insertion in model container [2023-12-23 02:55:39,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:55:16" (2/3) ... [2023-12-23 02:55:39,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb13a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:55:39, skipping insertion in model container [2023-12-23 02:55:39,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:55:39" (3/3) ... [2023-12-23 02:55:39,253 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-79.i [2023-12-23 02:55:39,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 02:55:39,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 02:55:39,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 02:55:39,303 INFO L357 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, mHoare=true, 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;@6c4f3412, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 02:55:39,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 02:55:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 130 states have (on average 1.4538461538461538) internal successors, (189), 131 states have internal predecessors, (189), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 02:55:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-12-23 02:55:39,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:55:39,334 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:55:39,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:55:39,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:55:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash 345102052, now seen corresponding path program 1 times [2023-12-23 02:55:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:55:39,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34131612] [2023-12-23 02:55:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:55:39,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:55:39,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:55:39,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:55:39,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 02:55:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:55:40,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 02:55:40,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:55:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10464 proven. 0 refuted. 0 times theorem prover too weak. 10548 trivial. 0 not checked. [2023-12-23 02:55:40,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:55:40,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:55:40,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34131612] [2023-12-23 02:55:40,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34131612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:55:40,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:55:40,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 02:55:40,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692153326] [2023-12-23 02:55:40,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:55:40,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 02:55:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:55:40,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 02:55:40,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:55:40,513 INFO L87 Difference]: Start difference. First operand has 236 states, 130 states have (on average 1.4538461538461538) internal successors, (189), 131 states have internal predecessors, (189), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-23 02:55:44,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:55:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:55:44,691 INFO L93 Difference]: Finished difference Result 469 states and 891 transitions. [2023-12-23 02:55:44,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 02:55:44,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 621 [2023-12-23 02:55:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:55:44,743 INFO L225 Difference]: With dead ends: 469 [2023-12-23 02:55:44,743 INFO L226 Difference]: Without dead ends: 234 [2023-12-23 02:55:44,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:55:44,754 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:55:44,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 387 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-23 02:55:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-23 02:55:44,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-23 02:55:44,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 129 states have (on average 1.426356589147287) internal successors, (184), 129 states have internal predecessors, (184), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 02:55:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 390 transitions. [2023-12-23 02:55:44,839 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 390 transitions. Word has length 621 [2023-12-23 02:55:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:55:44,841 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 390 transitions. [2023-12-23 02:55:44,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-23 02:55:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 390 transitions. [2023-12-23 02:55:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-12-23 02:55:44,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:55:44,855 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:55:44,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 02:55:45,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:55:45,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:55:45,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:55:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1103021402, now seen corresponding path program 1 times [2023-12-23 02:55:45,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:55:45,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792758729] [2023-12-23 02:55:45,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:55:45,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:55:45,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:55:45,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:55:45,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 02:55:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:55:46,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 02:55:46,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:55:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10188 proven. 183 refuted. 0 times theorem prover too weak. 10641 trivial. 0 not checked. [2023-12-23 02:55:50,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:55:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 123 proven. 183 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 02:55:52,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:55:52,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792758729] [2023-12-23 02:55:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792758729] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:55:52,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:55:52,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 02:55:52,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750001078] [2023-12-23 02:55:52,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:55:52,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 02:55:52,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:55:52,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 02:55:52,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:55:52,940 INFO L87 Difference]: Start difference. First operand 234 states and 390 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2023-12-23 02:56:01,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:56:05,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:56:07,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:56:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:56:07,424 INFO L93 Difference]: Finished difference Result 473 states and 784 transitions. [2023-12-23 02:56:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 02:56:07,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) Word has length 621 [2023-12-23 02:56:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:56:07,475 INFO L225 Difference]: With dead ends: 473 [2023-12-23 02:56:07,475 INFO L226 Difference]: Without dead ends: 240 [2023-12-23 02:56:07,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1244 GetRequests, 1234 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 02:56:07,477 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 183 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-23 02:56:07,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 617 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2023-12-23 02:56:07,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-23 02:56:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2023-12-23 02:56:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 132 states have (on average 1.4090909090909092) internal successors, (186), 132 states have internal predecessors, (186), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 02:56:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-23 02:56:07,547 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 621 [2023-12-23 02:56:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:56:07,548 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-23 02:56:07,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2023-12-23 02:56:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-23 02:56:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2023-12-23 02:56:07,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:56:07,553 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:56:07,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 02:56:07,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:56:07,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:56:07,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:56:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -101200029, now seen corresponding path program 1 times [2023-12-23 02:56:07,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:56:07,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591081126] [2023-12-23 02:56:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:56:07,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:56:07,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:56:07,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:56:07,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 02:56:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:56:08,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 02:56:08,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:56:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 11477 proven. 447 refuted. 0 times theorem prover too weak. 9088 trivial. 0 not checked. [2023-12-23 02:56:21,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:56:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 453 proven. 456 refuted. 0 times theorem prover too weak. 20103 trivial. 0 not checked. [2023-12-23 02:56:26,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:56:26,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591081126] [2023-12-23 02:56:26,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591081126] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:56:26,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:56:26,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2023-12-23 02:56:26,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381274410] [2023-12-23 02:56:26,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:56:26,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-23 02:56:26,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:56:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-23 02:56:26,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-12-23 02:56:26,362 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 4 states have call successors, (157), 4 states have call predecessors, (157), 10 states have return successors, (158), 4 states have call predecessors, (158), 4 states have call successors, (158) [2023-12-23 02:56:37,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:56:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:56:45,335 INFO L93 Difference]: Finished difference Result 697 states and 1105 transitions. [2023-12-23 02:56:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-23 02:56:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 4 states have call successors, (157), 4 states have call predecessors, (157), 10 states have return successors, (158), 4 states have call predecessors, (158), 4 states have call successors, (158) Word has length 622 [2023-12-23 02:56:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:56:45,340 INFO L225 Difference]: With dead ends: 697 [2023-12-23 02:56:45,340 INFO L226 Difference]: Without dead ends: 460 [2023-12-23 02:56:45,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1278 GetRequests, 1229 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=689, Invalid=1761, Unknown=0, NotChecked=0, Total=2450 [2023-12-23 02:56:45,342 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 916 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-23 02:56:45,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 1314 Invalid, 2309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [685 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2023-12-23 02:56:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-12-23 02:56:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 249. [2023-12-23 02:56:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 140 states have internal predecessors, (190), 103 states have call successors, (103), 5 states have call predecessors, (103), 5 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 02:56:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 396 transitions. [2023-12-23 02:56:45,375 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 396 transitions. Word has length 622 [2023-12-23 02:56:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:56:45,377 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 396 transitions. [2023-12-23 02:56:45,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 18 states have internal predecessors, (137), 4 states have call successors, (157), 4 states have call predecessors, (157), 10 states have return successors, (158), 4 states have call predecessors, (158), 4 states have call successors, (158) [2023-12-23 02:56:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 396 transitions. [2023-12-23 02:56:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2023-12-23 02:56:45,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:56:45,381 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:56:45,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 02:56:45,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:56:45,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:56:45,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:56:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1902786339, now seen corresponding path program 1 times [2023-12-23 02:56:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:56:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325523435] [2023-12-23 02:56:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:56:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:56:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:56:45,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:56:45,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 02:56:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:56:46,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 02:56:46,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:56:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 02:56:54,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:56:54,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:56:54,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325523435] [2023-12-23 02:56:54,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325523435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:56:54,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:56:54,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 02:56:54,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517103383] [2023-12-23 02:56:54,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:56:54,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 02:56:54,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:56:54,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 02:56:54,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 02:56:54,584 INFO L87 Difference]: Start difference. First operand 249 states and 396 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:00,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:05,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:57:05,372 INFO L93 Difference]: Finished difference Result 758 states and 1205 transitions. [2023-12-23 02:57:05,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 02:57:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 622 [2023-12-23 02:57:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:57:05,424 INFO L225 Difference]: With dead ends: 758 [2023-12-23 02:57:05,424 INFO L226 Difference]: Without dead ends: 510 [2023-12-23 02:57:05,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:57:05,426 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 259 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 209 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-23 02:57:05,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1312 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2023-12-23 02:57:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-23 02:57:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 495. [2023-12-23 02:57:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 278 states have (on average 1.3489208633093526) internal successors, (375), 278 states have internal predecessors, (375), 206 states have call successors, (206), 10 states have call predecessors, (206), 10 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2023-12-23 02:57:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 787 transitions. [2023-12-23 02:57:05,484 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 787 transitions. Word has length 622 [2023-12-23 02:57:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:57:05,485 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 787 transitions. [2023-12-23 02:57:05,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:05,486 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 787 transitions. [2023-12-23 02:57:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2023-12-23 02:57:05,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:57:05,489 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:57:05,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 02:57:05,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:05,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:57:05,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:57:05,703 INFO L85 PathProgramCache]: Analyzing trace with hash -613624227, now seen corresponding path program 1 times [2023-12-23 02:57:05,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:57:05,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623426301] [2023-12-23 02:57:05,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:57:05,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:05,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:57:05,705 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:57:05,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 02:57:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:57:06,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 02:57:06,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:57:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 02:57:14,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:57:14,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:57:14,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623426301] [2023-12-23 02:57:14,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623426301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:57:14,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:57:14,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 02:57:14,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098395611] [2023-12-23 02:57:14,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:57:14,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 02:57:14,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:57:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 02:57:14,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 02:57:14,327 INFO L87 Difference]: Start difference. First operand 495 states and 787 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:18,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:21,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:26,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:57:26,006 INFO L93 Difference]: Finished difference Result 1249 states and 1984 transitions. [2023-12-23 02:57:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 02:57:26,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 624 [2023-12-23 02:57:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:57:26,063 INFO L225 Difference]: With dead ends: 1249 [2023-12-23 02:57:26,063 INFO L226 Difference]: Without dead ends: 755 [2023-12-23 02:57:26,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:57:26,065 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 254 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-23 02:57:26,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1284 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-23 02:57:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-23 02:57:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 729. [2023-12-23 02:57:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 404 states have (on average 1.3366336633663367) internal successors, (540), 404 states have internal predecessors, (540), 309 states have call successors, (309), 15 states have call predecessors, (309), 15 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2023-12-23 02:57:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1158 transitions. [2023-12-23 02:57:26,180 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1158 transitions. Word has length 624 [2023-12-23 02:57:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:57:26,181 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1158 transitions. [2023-12-23 02:57:26,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1158 transitions. [2023-12-23 02:57:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2023-12-23 02:57:26,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:57:26,184 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:57:26,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 02:57:26,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:26,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:57:26,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:57:26,401 INFO L85 PathProgramCache]: Analyzing trace with hash 87440351, now seen corresponding path program 1 times [2023-12-23 02:57:26,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:57:26,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826482029] [2023-12-23 02:57:26,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:57:26,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:26,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:57:26,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:57:26,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 02:57:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:57:27,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:57:27,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:57:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 02:57:27,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:57:27,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:57:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826482029] [2023-12-23 02:57:27,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826482029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:57:27,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:57:27,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:57:27,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534443000] [2023-12-23 02:57:27,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:57:27,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:57:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:57:27,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:57:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:57:27,522 INFO L87 Difference]: Start difference. First operand 729 states and 1158 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:31,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:57:31,429 INFO L93 Difference]: Finished difference Result 1231 states and 1950 transitions. [2023-12-23 02:57:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:57:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 624 [2023-12-23 02:57:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:57:31,437 INFO L225 Difference]: With dead ends: 1231 [2023-12-23 02:57:31,437 INFO L226 Difference]: Without dead ends: 737 [2023-12-23 02:57:31,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:57:31,439 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 30 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-23 02:57:31,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 743 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-23 02:57:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-12-23 02:57:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2023-12-23 02:57:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 410 states have (on average 1.326829268292683) internal successors, (544), 410 states have internal predecessors, (544), 309 states have call successors, (309), 17 states have call predecessors, (309), 17 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2023-12-23 02:57:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1162 transitions. [2023-12-23 02:57:31,524 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1162 transitions. Word has length 624 [2023-12-23 02:57:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:57:31,524 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1162 transitions. [2023-12-23 02:57:31,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 02:57:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1162 transitions. [2023-12-23 02:57:31,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2023-12-23 02:57:31,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:57:31,528 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:57:31,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 02:57:31,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:31,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:57:31,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:57:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash -591699495, now seen corresponding path program 1 times [2023-12-23 02:57:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:57:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739637208] [2023-12-23 02:57:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:57:31,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:31,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:57:31,748 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:57:31,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-23 02:57:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:57:32,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:57:32,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:57:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 5058 proven. 264 refuted. 0 times theorem prover too weak. 15690 trivial. 0 not checked. [2023-12-23 02:57:39,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:57:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 42 proven. 264 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 02:57:42,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:57:42,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739637208] [2023-12-23 02:57:42,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739637208] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:57:42,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:57:42,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 02:57:42,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330980367] [2023-12-23 02:57:42,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:57:42,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 02:57:42,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:57:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 02:57:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 02:57:42,865 INFO L87 Difference]: Start difference. First operand 737 states and 1162 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) [2023-12-23 02:57:51,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:55,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:57,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:57:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:57:57,290 INFO L93 Difference]: Finished difference Result 1035 states and 1602 transitions. [2023-12-23 02:57:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 02:57:57,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) Word has length 625 [2023-12-23 02:57:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:57:57,349 INFO L225 Difference]: With dead ends: 1035 [2023-12-23 02:57:57,349 INFO L226 Difference]: Without dead ends: 783 [2023-12-23 02:57:57,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1241 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-23 02:57:57,351 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 351 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 288 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-23 02:57:57,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 602 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 513 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2023-12-23 02:57:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-12-23 02:57:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 749. [2023-12-23 02:57:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 419 states have (on average 1.3150357995226731) internal successors, (551), 419 states have internal predecessors, (551), 309 states have call successors, (309), 20 states have call predecessors, (309), 20 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2023-12-23 02:57:57,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1169 transitions. [2023-12-23 02:57:57,436 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1169 transitions. Word has length 625 [2023-12-23 02:57:57,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:57:57,437 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1169 transitions. [2023-12-23 02:57:57,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) [2023-12-23 02:57:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1169 transitions. [2023-12-23 02:57:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2023-12-23 02:57:57,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:57:57,441 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 02:57:57,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-23 02:57:57,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:57,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:57:57,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:57:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash 198931150, now seen corresponding path program 1 times [2023-12-23 02:57:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:57:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62286016] [2023-12-23 02:57:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:57:57,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:57:57,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:57:57,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:57:57,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 02:57:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:57:58,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-23 02:57:58,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:01:33,898 WARN L293 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 03:02:41,560 WARN L293 SmtUtils]: Spent 7.30s on a formula simplification that was a NOOP. DAG size: 142 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 03:03:22,669 WARN L293 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)