/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-500_file-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 04:20:48,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 04:20:48,472 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 04:20:48,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 04:20:48,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 04:20:48,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 04:20:48,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 04:20:48,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 04:20:48,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 04:20:48,509 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 04:20:48,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 04:20:48,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 04:20:48,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 04:20:48,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 04:20:48,512 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 04:20:48,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 04:20:48,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 04:20:48,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 04:20:48,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 04:20:48,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 04:20:48,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 04:20:48,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 04:20:48,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 04:20:48,515 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 04:20:48,515 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 04:20:48,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 04:20:48,515 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 04:20:48,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 04:20:48,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 04:20:48,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 04:20:48,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 04:20:48,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 04:20:48,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 04:20:48,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 04:20:48,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:20:48,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 04:20:48,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 04:20:48,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 04:20:48,518 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 04:20:48,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 04:20:48,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 04:20:48,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 04:20:48,519 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 04:20:48,519 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 04:20:48,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 04:20:48,520 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 04:20:48,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 04:20:48,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 04:20:48,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 04:20:48,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 04:20:48,769 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 04:20:48,769 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 04:20:48,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-15.i [2023-12-23 04:20:49,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 04:20:50,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 04:20:50,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-15.i [2023-12-23 04:20:50,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39586dfbe/5a52241f5b83418b8e2b75183d3a35af/FLAGa3bfc2d11 [2023-12-23 04:20:50,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39586dfbe/5a52241f5b83418b8e2b75183d3a35af [2023-12-23 04:20:50,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 04:20:50,220 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 04:20:50,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 04:20:50,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 04:20:50,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 04:20:50,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e58e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50, skipping insertion in model container [2023-12-23 04:20:50,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,277 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 04:20:50,413 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-500_file-15.i[916,929] [2023-12-23 04:20:50,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:20:50,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 04:20:50,608 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-500_file-15.i[916,929] [2023-12-23 04:20:50,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:20:50,767 INFO L206 MainTranslator]: Completed translation [2023-12-23 04:20:50,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50 WrapperNode [2023-12-23 04:20:50,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 04:20:50,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 04:20:50,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 04:20:50,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 04:20:50,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,864 INFO L138 Inliner]: procedures = 27, calls = 118, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 684 [2023-12-23 04:20:50,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 04:20:50,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 04:20:50,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 04:20:50,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 04:20:50,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,917 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 04:20:50,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 04:20:50,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 04:20:50,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 04:20:50,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 04:20:50,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (1/1) ... [2023-12-23 04:20:50,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:20:51,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 04:20:51,025 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 04:20:51,042 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 04:20:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 04:20:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 04:20:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 04:20:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 04:20:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 04:20:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 04:20:51,216 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 04:20:51,218 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 04:21:26,662 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 04:21:26,742 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 04:21:26,742 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 04:21:26,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:21:26 BoogieIcfgContainer [2023-12-23 04:21:26,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 04:21:26,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 04:21:26,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 04:21:26,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 04:21:26,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:20:50" (1/3) ... [2023-12-23 04:21:26,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaba526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:21:26, skipping insertion in model container [2023-12-23 04:21:26,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:50" (2/3) ... [2023-12-23 04:21:26,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaba526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:21:26, skipping insertion in model container [2023-12-23 04:21:26,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:21:26" (3/3) ... [2023-12-23 04:21:26,754 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-15.i [2023-12-23 04:21:26,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 04:21:26,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 04:21:26,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 04:21:26,828 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;@7b9c1f0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 04:21:26,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 04:21:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 195 states have internal predecessors, (314), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-23 04:21:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:21:26,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:21:26,871 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:26,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:21:26,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:21:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -471577733, now seen corresponding path program 1 times [2023-12-23 04:21:26,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:21:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431729722] [2023-12-23 04:21:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:26,894 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 04:21:26,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:21:26,897 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 04:21:26,903 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 04:21:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:28,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 04:21:28,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 3280 proven. 0 refuted. 0 times theorem prover too weak. 18560 trivial. 0 not checked. [2023-12-23 04:21:28,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:21:28,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:21:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431729722] [2023-12-23 04:21:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431729722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:21:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:21:28,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 04:21:28,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161482404] [2023-12-23 04:21:28,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:21:28,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 04:21:28,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:21:28,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 04:21:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 04:21:28,568 INFO L87 Difference]: Start difference. First operand has 302 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 195 states have internal predecessors, (314), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2023-12-23 04:21:30,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:21:30,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:21:30,638 INFO L93 Difference]: Finished difference Result 601 states and 1151 transitions. [2023-12-23 04:21:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 04:21:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 663 [2023-12-23 04:21:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:21:30,681 INFO L225 Difference]: With dead ends: 601 [2023-12-23 04:21:30,681 INFO L226 Difference]: Without dead ends: 300 [2023-12-23 04:21:30,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 662 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 04:21:30,689 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:21:30,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 516 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-23 04:21:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-23 04:21:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-23 04:21:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 193 states have (on average 1.6010362694300517) internal successors, (309), 193 states have internal predecessors, (309), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-23 04:21:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 519 transitions. [2023-12-23 04:21:30,802 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 519 transitions. Word has length 663 [2023-12-23 04:21:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:21:30,804 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 519 transitions. [2023-12-23 04:21:30,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2023-12-23 04:21:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 519 transitions. [2023-12-23 04:21:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:21:30,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:21:30,819 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:30,862 INFO L552 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)] Ended with exit code 0 [2023-12-23 04:21:31,045 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 04:21:31,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:21:31,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:21:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1918040249, now seen corresponding path program 1 times [2023-12-23 04:21:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:21:31,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217705521] [2023-12-23 04:21:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:31,049 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 04:21:31,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:21:31,051 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 04:21:31,068 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 04:21:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:32,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:21:32,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:21:32,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:21:32,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:21:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217705521] [2023-12-23 04:21:32,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217705521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:21:32,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:21:32,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 04:21:32,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592583384] [2023-12-23 04:21:32,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:21:32,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:21:32,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:21:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:21:32,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 04:21:32,818 INFO L87 Difference]: Start difference. First operand 300 states and 519 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:34,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:21:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:21:34,447 INFO L93 Difference]: Finished difference Result 771 states and 1344 transitions. [2023-12-23 04:21:34,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:21:34,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:21:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:21:34,456 INFO L225 Difference]: With dead ends: 771 [2023-12-23 04:21:34,456 INFO L226 Difference]: Without dead ends: 472 [2023-12-23 04:21:34,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 661 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 04:21:34,460 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 291 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:21:34,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1082 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-23 04:21:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-12-23 04:21:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 469. [2023-12-23 04:21:34,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 335 states have (on average 1.6656716417910449) internal successors, (558), 336 states have internal predecessors, (558), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2023-12-23 04:21:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 820 transitions. [2023-12-23 04:21:34,522 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 820 transitions. Word has length 663 [2023-12-23 04:21:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:21:34,526 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 820 transitions. [2023-12-23 04:21:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 820 transitions. [2023-12-23 04:21:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:21:34,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:21:34,561 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:34,613 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 04:21:34,762 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 04:21:34,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:21:34,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:21:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2115051399, now seen corresponding path program 1 times [2023-12-23 04:21:34,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:21:34,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524446145] [2023-12-23 04:21:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:34,766 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 04:21:34,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:21:34,769 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 04:21:34,803 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 04:21:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:36,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:21:36,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:21:40,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:21:41,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:21:41,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524446145] [2023-12-23 04:21:41,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524446145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:21:41,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1046288458] [2023-12-23 04:21:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:41,816 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:21:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:21:41,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:21:41,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 04:21:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:43,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:21:43,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:21:43,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:21:43,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1046288458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:21:43,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:21:43,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 04:21:43,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921402528] [2023-12-23 04:21:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:21:43,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:21:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:21:43,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:21:43,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:21:43,952 INFO L87 Difference]: Start difference. First operand 469 states and 820 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:45,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:21:48,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:21:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:21:48,343 INFO L93 Difference]: Finished difference Result 1391 states and 2430 transitions. [2023-12-23 04:21:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:21:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:21:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:21:48,359 INFO L225 Difference]: With dead ends: 1391 [2023-12-23 04:21:48,359 INFO L226 Difference]: Without dead ends: 923 [2023-12-23 04:21:48,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:21:48,367 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 481 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-23 04:21:48,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1088 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-23 04:21:48,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-23 04:21:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 609. [2023-12-23 04:21:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 475 states have (on average 1.7326315789473685) internal successors, (823), 476 states have internal predecessors, (823), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2023-12-23 04:21:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1085 transitions. [2023-12-23 04:21:48,433 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1085 transitions. Word has length 663 [2023-12-23 04:21:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:21:48,434 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 1085 transitions. [2023-12-23 04:21:48,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1085 transitions. [2023-12-23 04:21:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:21:48,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:21:48,441 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:48,479 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 04:21:48,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-23 04:21:48,848 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:21:48,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:21:48,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:21:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1896196681, now seen corresponding path program 1 times [2023-12-23 04:21:48,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:21:48,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580886639] [2023-12-23 04:21:48,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:48,852 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 04:21:48,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:21:48,856 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 04:21:48,863 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 04:21:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:50,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:21:50,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:21:54,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:21:55,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:21:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580886639] [2023-12-23 04:21:55,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580886639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:21:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1423131976] [2023-12-23 04:21:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:21:55,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:21:55,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:21:55,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:21:55,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 04:21:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:21:56,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:21:56,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:21:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:21:57,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:21:57,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1423131976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:21:57,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:21:57,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 04:21:57,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797954449] [2023-12-23 04:21:57,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:21:57,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:21:57,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:21:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:21:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:21:57,268 INFO L87 Difference]: Start difference. First operand 609 states and 1085 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:59,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:21:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:21:59,698 INFO L93 Difference]: Finished difference Result 1531 states and 2693 transitions. [2023-12-23 04:21:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:21:59,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:21:59,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:21:59,705 INFO L225 Difference]: With dead ends: 1531 [2023-12-23 04:21:59,706 INFO L226 Difference]: Without dead ends: 923 [2023-12-23 04:21:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:21:59,708 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 461 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:21:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1342 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-23 04:21:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-23 04:21:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 609. [2023-12-23 04:21:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 475 states have (on average 1.7242105263157894) internal successors, (819), 476 states have internal predecessors, (819), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2023-12-23 04:21:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1081 transitions. [2023-12-23 04:21:59,761 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1081 transitions. Word has length 663 [2023-12-23 04:21:59,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:21:59,762 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 1081 transitions. [2023-12-23 04:21:59,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:21:59,762 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1081 transitions. [2023-12-23 04:21:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:21:59,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:21:59,768 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:59,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:00,014 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 04:22:00,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 04:22:00,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:22:00,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:22:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1217658121, now seen corresponding path program 1 times [2023-12-23 04:22:00,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:22:00,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766489654] [2023-12-23 04:22:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:00,181 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 04:22:00,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:22:00,183 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 04:22:00,184 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 04:22:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:01,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:22:01,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:22:05,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:22:06,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:22:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766489654] [2023-12-23 04:22:06,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766489654] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:22:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1715337487] [2023-12-23 04:22:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:22:06,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:22:06,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:22:06,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-23 04:22:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:07,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:22:07,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:22:07,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:22:07,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1715337487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:22:07,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:22:07,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 04:22:07,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978464606] [2023-12-23 04:22:07,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:22:07,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:22:07,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:22:07,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:22:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:07,566 INFO L87 Difference]: Start difference. First operand 609 states and 1081 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:09,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:22:09,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:22:09,413 INFO L93 Difference]: Finished difference Result 1655 states and 2936 transitions. [2023-12-23 04:22:09,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:22:09,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:22:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:22:09,419 INFO L225 Difference]: With dead ends: 1655 [2023-12-23 04:22:09,420 INFO L226 Difference]: Without dead ends: 1047 [2023-12-23 04:22:09,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:09,422 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 316 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:22:09,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1248 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-23 04:22:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-12-23 04:22:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1044. [2023-12-23 04:22:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 826 states have (on average 1.7239709443099274) internal successors, (1424), 829 states have internal predecessors, (1424), 213 states have call successors, (213), 4 states have call predecessors, (213), 4 states have return successors, (213), 210 states have call predecessors, (213), 213 states have call successors, (213) [2023-12-23 04:22:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1850 transitions. [2023-12-23 04:22:09,483 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1850 transitions. Word has length 663 [2023-12-23 04:22:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:22:09,484 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1850 transitions. [2023-12-23 04:22:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1850 transitions. [2023-12-23 04:22:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:22:09,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:22:09,490 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:09,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:09,750 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 04:22:09,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 04:22:09,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:22:09,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:22:09,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1372563455, now seen corresponding path program 1 times [2023-12-23 04:22:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:22:09,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348354326] [2023-12-23 04:22:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:09,904 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 04:22:09,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:22:09,905 INFO L229 MonitoredProcess]: Starting monitored process 10 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 04:22:09,906 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 (10)] Waiting until timeout for monitored process [2023-12-23 04:22:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:11,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:22:11,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:22:14,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:22:15,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:22:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348354326] [2023-12-23 04:22:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348354326] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:22:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [281049924] [2023-12-23 04:22:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:15,817 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:22:15,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:22:15,821 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:22:15,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-23 04:22:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:17,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:22:17,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:22:17,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:22:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [281049924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:22:17,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:22:17,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 04:22:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742707222] [2023-12-23 04:22:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:22:17,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:22:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:22:17,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:22:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:17,456 INFO L87 Difference]: Start difference. First operand 1044 states and 1850 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:19,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:22:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:22:19,507 INFO L93 Difference]: Finished difference Result 2746 states and 4812 transitions. [2023-12-23 04:22:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:22:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:22:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:22:19,519 INFO L225 Difference]: With dead ends: 2746 [2023-12-23 04:22:19,520 INFO L226 Difference]: Without dead ends: 1703 [2023-12-23 04:22:19,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:19,525 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 310 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:22:19,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1021 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-23 04:22:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-12-23 04:22:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1700. [2023-12-23 04:22:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1283 states have (on average 1.6687451286048325) internal successors, (2141), 1290 states have internal predecessors, (2141), 408 states have call successors, (408), 8 states have call predecessors, (408), 8 states have return successors, (408), 401 states have call predecessors, (408), 408 states have call successors, (408) [2023-12-23 04:22:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2957 transitions. [2023-12-23 04:22:19,626 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2957 transitions. Word has length 663 [2023-12-23 04:22:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:22:19,628 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 2957 transitions. [2023-12-23 04:22:19,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2957 transitions. [2023-12-23 04:22:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:22:19,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:22:19,635 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:19,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:19,897 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 (10)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /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 04:22:20,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:22:20,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:22:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 554915005, now seen corresponding path program 1 times [2023-12-23 04:22:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:22:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988869432] [2023-12-23 04:22:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:20,050 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 04:22:20,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:22:20,053 INFO L229 MonitoredProcess]: Starting monitored process 12 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 04:22:20,068 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 (12)] Waiting until timeout for monitored process [2023-12-23 04:22:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:21,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:22:21,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:22:25,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:22:26,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:22:26,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988869432] [2023-12-23 04:22:26,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988869432] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:22:26,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [503526477] [2023-12-23 04:22:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:22:26,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:22:26,184 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:22:26,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-23 04:22:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:27,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:22:27,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:22:27,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:22:27,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [503526477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:22:27,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:22:27,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 04:22:27,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307568506] [2023-12-23 04:22:27,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:22:27,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:22:27,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:22:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:22:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:27,703 INFO L87 Difference]: Start difference. First operand 1700 states and 2957 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:28,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:22:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:22:29,137 INFO L93 Difference]: Finished difference Result 4341 states and 7446 transitions. [2023-12-23 04:22:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:22:29,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:22:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:22:29,153 INFO L225 Difference]: With dead ends: 4341 [2023-12-23 04:22:29,153 INFO L226 Difference]: Without dead ends: 2642 [2023-12-23 04:22:29,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:29,161 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 219 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-23 04:22:29,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1017 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-23 04:22:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2023-12-23 04:22:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2638. [2023-12-23 04:22:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 1881 states have (on average 1.5858585858585859) internal successors, (2983), 1896 states have internal predecessors, (2983), 740 states have call successors, (740), 16 states have call predecessors, (740), 16 states have return successors, (740), 725 states have call predecessors, (740), 740 states have call successors, (740) [2023-12-23 04:22:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4463 transitions. [2023-12-23 04:22:29,329 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4463 transitions. Word has length 663 [2023-12-23 04:22:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:22:29,330 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 4463 transitions. [2023-12-23 04:22:29,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4463 transitions. [2023-12-23 04:22:29,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:22:29,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:22:29,339 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:29,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:29,585 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 (12)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:29,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,12 /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 04:22:29,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:22:29,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:22:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1881074881, now seen corresponding path program 1 times [2023-12-23 04:22:29,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:22:29,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832436466] [2023-12-23 04:22:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:29,754 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 04:22:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:22:29,755 INFO L229 MonitoredProcess]: Starting monitored process 14 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 04:22:29,756 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 (14)] Waiting until timeout for monitored process [2023-12-23 04:22:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:31,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:22:31,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:22:34,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:22:35,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:22:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832436466] [2023-12-23 04:22:35,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832436466] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:22:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1734970219] [2023-12-23 04:22:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:35,698 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:22:35,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:22:35,701 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:22:35,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-23 04:22:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:37,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:22:37,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:22:42,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:22:42,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1734970219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:22:42,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:22:42,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-23 04:22:42,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859697018] [2023-12-23 04:22:42,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:22:42,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:22:42,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:22:42,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:22:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:42,614 INFO L87 Difference]: Start difference. First operand 2638 states and 4463 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:22:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:22:44,649 INFO L93 Difference]: Finished difference Result 7896 states and 13355 transitions. [2023-12-23 04:22:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:22:44,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:22:44,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:22:44,683 INFO L225 Difference]: With dead ends: 7896 [2023-12-23 04:22:44,683 INFO L226 Difference]: Without dead ends: 5259 [2023-12-23 04:22:44,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:22:44,720 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 171 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 04:22:44,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1015 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 04:22:44,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5259 states. [2023-12-23 04:22:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5259 to 5257. [2023-12-23 04:22:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3744 states have (on average 1.5758547008547008) internal successors, (5900), 3774 states have internal predecessors, (5900), 1480 states have call successors, (1480), 32 states have call predecessors, (1480), 32 states have return successors, (1480), 1450 states have call predecessors, (1480), 1480 states have call successors, (1480) [2023-12-23 04:22:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8860 transitions. [2023-12-23 04:22:45,097 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8860 transitions. Word has length 663 [2023-12-23 04:22:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:22:45,098 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8860 transitions. [2023-12-23 04:22:45,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:22:45,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8860 transitions. [2023-12-23 04:22:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:22:45,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:22:45,107 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:45,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:45,351 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 (14)] Forceful destruction successful, exit code 0 [2023-12-23 04:22:45,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,14 /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 04:22:45,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:22:45,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:22:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1071728255, now seen corresponding path program 1 times [2023-12-23 04:22:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:22:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628772002] [2023-12-23 04:22:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:45,522 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 04:22:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:22:45,523 INFO L229 MonitoredProcess]: Starting monitored process 16 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 04:22:45,526 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 (16)] Waiting until timeout for monitored process [2023-12-23 04:22:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:46,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:22:46,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:22:50,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:22:51,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:22:51,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628772002] [2023-12-23 04:22:51,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628772002] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:22:51,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1785918261] [2023-12-23 04:22:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:22:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:22:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:22:51,484 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:22:51,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-23 04:22:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:22:52,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 04:22:52,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:22:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:22:58,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:22:58,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1785918261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:22:58,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:22:58,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:22:58,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40163684] [2023-12-23 04:22:58,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:22:58,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:22:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:22:58,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:22:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:22:58,688 INFO L87 Difference]: Start difference. First operand 5257 states and 8860 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:23:02,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:23:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:23:02,474 INFO L93 Difference]: Finished difference Result 10531 states and 17736 transitions. [2023-12-23 04:23:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 04:23:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:23:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:23:02,508 INFO L225 Difference]: With dead ends: 10531 [2023-12-23 04:23:02,508 INFO L226 Difference]: Without dead ends: 5275 [2023-12-23 04:23:02,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1403 GetRequests, 1397 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:23:02,530 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 169 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:23:02,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1310 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-23 04:23:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5275 states. [2023-12-23 04:23:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5275 to 5257. [2023-12-23 04:23:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3744 states have (on average 1.5715811965811965) internal successors, (5884), 3774 states have internal predecessors, (5884), 1480 states have call successors, (1480), 32 states have call predecessors, (1480), 32 states have return successors, (1480), 1450 states have call predecessors, (1480), 1480 states have call successors, (1480) [2023-12-23 04:23:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8844 transitions. [2023-12-23 04:23:03,010 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8844 transitions. Word has length 663 [2023-12-23 04:23:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:23:03,011 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8844 transitions. [2023-12-23 04:23:03,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:23:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8844 transitions. [2023-12-23 04:23:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:23:03,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:23:03,019 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:03,063 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 (16)] Forceful destruction successful, exit code 0 [2023-12-23 04:23:03,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-12-23 04:23:03,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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=3,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:23:03,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:23:03,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:23:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1128986557, now seen corresponding path program 1 times [2023-12-23 04:23:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:23:03,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718884183] [2023-12-23 04:23:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:23:03,434 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 04:23:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:23:03,435 INFO L229 MonitoredProcess]: Starting monitored process 18 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 04:23:03,437 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 (18)] Waiting until timeout for monitored process [2023-12-23 04:23:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:23:04,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:23:04,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:23:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:23:08,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:23:09,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:23:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718884183] [2023-12-23 04:23:09,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718884183] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:23:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [449905246] [2023-12-23 04:23:09,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:23:09,688 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:23:09,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:23:09,689 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:23:09,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-23 04:23:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:23:11,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 04:23:11,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:23:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:23:12,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:23:12,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [449905246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:23:12,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:23:12,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-23 04:23:12,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063756443] [2023-12-23 04:23:12,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:23:12,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:23:12,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:23:12,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:23:12,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:23:12,790 INFO L87 Difference]: Start difference. First operand 5257 states and 8844 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:23:15,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:23:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:23:16,129 INFO L93 Difference]: Finished difference Result 10383 states and 17456 transitions. [2023-12-23 04:23:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 04:23:16,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 663 [2023-12-23 04:23:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:23:16,173 INFO L225 Difference]: With dead ends: 10383 [2023-12-23 04:23:16,174 INFO L226 Difference]: Without dead ends: 5127 [2023-12-23 04:23:16,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1405 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:23:16,190 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 595 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:23:16,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1269 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-23 04:23:16,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5127 states. [2023-12-23 04:23:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5127 to 3669. [2023-12-23 04:23:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 2832 states have (on average 1.63135593220339) internal successors, (4620), 2846 states have internal predecessors, (4620), 816 states have call successors, (816), 20 states have call predecessors, (816), 20 states have return successors, (816), 802 states have call predecessors, (816), 816 states have call successors, (816) [2023-12-23 04:23:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 6252 transitions. [2023-12-23 04:23:16,558 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 6252 transitions. Word has length 663 [2023-12-23 04:23:16,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:23:16,559 INFO L495 AbstractCegarLoop]: Abstraction has 3669 states and 6252 transitions. [2023-12-23 04:23:16,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:23:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 6252 transitions. [2023-12-23 04:23:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-23 04:23:16,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:23:16,566 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:16,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-12-23 04:23:16,809 INFO L552 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 (18)] Ended with exit code 0 [2023-12-23 04:23:16,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /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 04:23:16,979 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:23:16,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:23:16,979 INFO L85 PathProgramCache]: Analyzing trace with hash 396055099, now seen corresponding path program 1 times [2023-12-23 04:23:16,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:23:16,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369808452] [2023-12-23 04:23:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:23:16,981 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 04:23:16,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:23:16,982 INFO L229 MonitoredProcess]: Starting monitored process 20 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 04:23:16,983 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 (20)] Waiting until timeout for monitored process [2023-12-23 04:23:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:23:18,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 04:23:18,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:23:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 12442 proven. 438 refuted. 0 times theorem prover too weak. 8960 trivial. 0 not checked. [2023-12-23 04:23:26,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:23:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 480 proven. 447 refuted. 0 times theorem prover too weak. 20913 trivial. 0 not checked. [2023-12-23 04:23:29,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:23:29,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369808452] [2023-12-23 04:23:29,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369808452] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:23:29,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:23:29,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2023-12-23 04:23:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978295992] [2023-12-23 04:23:29,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:23:29,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-23 04:23:29,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:23:29,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-23 04:23:29,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-23 04:23:29,711 INFO L87 Difference]: Start difference. First operand 3669 states and 6252 transitions. Second operand has 19 states, 19 states have (on average 11.31578947368421) internal successors, (215), 19 states have internal predecessors, (215), 4 states have call successors, (160), 4 states have call predecessors, (160), 10 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) [2023-12-23 04:23:40,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:23:49,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:23:49,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:23:49,307 INFO L93 Difference]: Finished difference Result 5529 states and 9258 transitions. [2023-12-23 04:23:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-23 04:23:49,308 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.31578947368421) internal successors, (215), 19 states have internal predecessors, (215), 4 states have call successors, (160), 4 states have call predecessors, (160), 10 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) Word has length 663 [2023-12-23 04:23:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:23:49,316 INFO L225 Difference]: With dead ends: 5529 [2023-12-23 04:23:49,316 INFO L226 Difference]: Without dead ends: 1861 [2023-12-23 04:23:49,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1355 GetRequests, 1309 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=614, Invalid=1548, Unknown=0, NotChecked=0, Total=2162 [2023-12-23 04:23:49,325 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1849 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-12-23 04:23:49,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 2350 Invalid, 3362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2023-12-23 04:23:49,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2023-12-23 04:23:49,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1777. [2023-12-23 04:23:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1149 states have (on average 1.4456048738033072) internal successors, (1661), 1156 states have internal predecessors, (1661), 593 states have call successors, (593), 34 states have call predecessors, (593), 34 states have return successors, (593), 586 states have call predecessors, (593), 593 states have call successors, (593) [2023-12-23 04:23:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2847 transitions. [2023-12-23 04:23:49,520 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2847 transitions. Word has length 663 [2023-12-23 04:23:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:23:49,521 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2847 transitions. [2023-12-23 04:23:49,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.31578947368421) internal successors, (215), 19 states have internal predecessors, (215), 4 states have call successors, (160), 4 states have call predecessors, (160), 10 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) [2023-12-23 04:23:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2847 transitions. [2023-12-23 04:23:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2023-12-23 04:23:49,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:23:49,527 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:49,581 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 (20)] Forceful destruction successful, exit code 0 [2023-12-23 04:23:49,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 04:23:49,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:23:49,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:23:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash 284983102, now seen corresponding path program 1 times [2023-12-23 04:23:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:23:49,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4168127] [2023-12-23 04:23:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:23:49,754 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 04:23:49,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:23:49,755 INFO L229 MonitoredProcess]: Starting monitored process 21 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 04:23:49,757 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 (21)] Waiting until timeout for monitored process [2023-12-23 04:23:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:23:51,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:23:51,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:23:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:23:54,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:23:56,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:23:56,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4168127] [2023-12-23 04:23:56,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4168127] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:23:56,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2047310787] [2023-12-23 04:23:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:23:56,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:23:56,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:23:56,048 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:23:56,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-23 04:23:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:23:59,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 04:23:59,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:24:00,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:24:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2047310787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:24:00,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:24:00,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-23 04:24:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002463923] [2023-12-23 04:24:00,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:24:00,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:24:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:24:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:24:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:24:00,390 INFO L87 Difference]: Start difference. First operand 1777 states and 2847 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:02,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:24:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:24:03,985 INFO L93 Difference]: Finished difference Result 4243 states and 6835 transitions. [2023-12-23 04:24:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 04:24:03,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 665 [2023-12-23 04:24:03,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:24:03,996 INFO L225 Difference]: With dead ends: 4243 [2023-12-23 04:24:03,997 INFO L226 Difference]: Without dead ends: 2655 [2023-12-23 04:24:04,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1411 GetRequests, 1404 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:24:04,003 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 670 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-23 04:24:04,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1172 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2023-12-23 04:24:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2023-12-23 04:24:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2645. [2023-12-23 04:24:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 1833 states have (on average 1.486633933442444) internal successors, (2725), 1848 states have internal predecessors, (2725), 769 states have call successors, (769), 42 states have call predecessors, (769), 42 states have return successors, (769), 754 states have call predecessors, (769), 769 states have call successors, (769) [2023-12-23 04:24:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 4263 transitions. [2023-12-23 04:24:04,269 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 4263 transitions. Word has length 665 [2023-12-23 04:24:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:24:04,270 INFO L495 AbstractCegarLoop]: Abstraction has 2645 states and 4263 transitions. [2023-12-23 04:24:04,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 4263 transitions. [2023-12-23 04:24:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2023-12-23 04:24:04,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:24:04,278 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:04,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:04,534 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 (21)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:04,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /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 04:24:04,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:24:04,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:24:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1116979713, now seen corresponding path program 1 times [2023-12-23 04:24:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:24:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662698624] [2023-12-23 04:24:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:04,707 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 04:24:04,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:24:04,709 INFO L229 MonitoredProcess]: Starting monitored process 23 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 04:24:04,712 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 (23)] Waiting until timeout for monitored process [2023-12-23 04:24:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:24:06,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:24:06,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:24:09,869 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:24:10,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:24:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662698624] [2023-12-23 04:24:10,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662698624] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:24:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [224335174] [2023-12-23 04:24:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:10,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:24:10,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:24:10,901 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:24:10,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-23 04:24:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:24:14,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:24:14,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:24:26,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:24:26,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [224335174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:24:26,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:24:26,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:24:26,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169244755] [2023-12-23 04:24:26,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:24:26,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:24:26,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:24:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:24:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:24:26,672 INFO L87 Difference]: Start difference. First operand 2645 states and 4263 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:24:31,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:24:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:24:31,800 INFO L93 Difference]: Finished difference Result 5869 states and 9515 transitions. [2023-12-23 04:24:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 04:24:31,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 666 [2023-12-23 04:24:31,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:24:31,848 INFO L225 Difference]: With dead ends: 5869 [2023-12-23 04:24:31,848 INFO L226 Difference]: Without dead ends: 3413 [2023-12-23 04:24:31,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1406 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:24:31,855 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 421 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-23 04:24:31,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1481 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-23 04:24:31,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2023-12-23 04:24:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3139. [2023-12-23 04:24:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 2327 states have (on average 1.5406102277610658) internal successors, (3585), 2341 states have internal predecessors, (3585), 769 states have call successors, (769), 42 states have call predecessors, (769), 42 states have return successors, (769), 755 states have call predecessors, (769), 769 states have call successors, (769) [2023-12-23 04:24:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 5123 transitions. [2023-12-23 04:24:32,154 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 5123 transitions. Word has length 666 [2023-12-23 04:24:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:24:32,155 INFO L495 AbstractCegarLoop]: Abstraction has 3139 states and 5123 transitions. [2023-12-23 04:24:32,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:32,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 5123 transitions. [2023-12-23 04:24:32,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-12-23 04:24:32,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:24:32,162 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:32,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:32,431 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 (23)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:32,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /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 04:24:32,580 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:24:32,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:24:32,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2116672413, now seen corresponding path program 1 times [2023-12-23 04:24:32,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:24:32,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076377358] [2023-12-23 04:24:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:32,582 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 04:24:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:24:32,586 INFO L229 MonitoredProcess]: Starting monitored process 25 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 04:24:32,620 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 (25)] Waiting until timeout for monitored process [2023-12-23 04:24:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:24:34,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:24:34,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:24:38,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:24:39,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:24:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076377358] [2023-12-23 04:24:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076377358] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:24:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1695069193] [2023-12-23 04:24:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:39,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:24:39,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:24:39,041 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:24:39,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-23 04:24:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:24:40,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 04:24:40,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 04:24:40,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:24:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1695069193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:24:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:24:40,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-23 04:24:40,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955870446] [2023-12-23 04:24:40,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:24:40,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:24:40,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:24:40,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:24:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:24:40,867 INFO L87 Difference]: Start difference. First operand 3139 states and 5123 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:43,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:24:47,352 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 04:24:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:24:47,978 INFO L93 Difference]: Finished difference Result 7045 states and 11192 transitions. [2023-12-23 04:24:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 04:24:47,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 667 [2023-12-23 04:24:47,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:24:47,996 INFO L225 Difference]: With dead ends: 7045 [2023-12-23 04:24:47,997 INFO L226 Difference]: Without dead ends: 4581 [2023-12-23 04:24:48,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1417 GetRequests, 1410 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:24:48,006 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 142 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-23 04:24:48,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1485 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-23 04:24:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2023-12-23 04:24:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 3783. [2023-12-23 04:24:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 2730 states have (on average 1.4842490842490843) internal successors, (4052), 2760 states have internal predecessors, (4052), 993 states have call successors, (993), 59 states have call predecessors, (993), 59 states have return successors, (993), 963 states have call predecessors, (993), 993 states have call successors, (993) [2023-12-23 04:24:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 6038 transitions. [2023-12-23 04:24:48,423 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 6038 transitions. Word has length 667 [2023-12-23 04:24:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:24:48,424 INFO L495 AbstractCegarLoop]: Abstraction has 3783 states and 6038 transitions. [2023-12-23 04:24:48,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 04:24:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 6038 transitions. [2023-12-23 04:24:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-12-23 04:24:48,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:24:48,431 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:48,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:48,693 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 (25)] Forceful destruction successful, exit code 0 [2023-12-23 04:24:48,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,25 /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 04:24:48,864 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:24:48,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:24:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1426206559, now seen corresponding path program 1 times [2023-12-23 04:24:48,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:24:48,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999134929] [2023-12-23 04:24:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:48,866 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 04:24:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:24:48,867 INFO L229 MonitoredProcess]: Starting monitored process 27 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 04:24:48,880 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 (27)] Waiting until timeout for monitored process [2023-12-23 04:24:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:24:50,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:24:50,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:24:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 9384 proven. 216 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2023-12-23 04:24:53,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:24:54,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:24:54,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999134929] [2023-12-23 04:24:54,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999134929] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:24:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [569239768] [2023-12-23 04:24:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:24:54,905 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:24:54,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:24:54,906 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:24:54,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-23 04:25:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:25:00,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:25:00,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:25:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 5622 proven. 45 refuted. 0 times theorem prover too weak. 16173 trivial. 0 not checked. [2023-12-23 04:25:02,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:25:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 267 proven. 45 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2023-12-23 04:25:03,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [569239768] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:25:03,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-23 04:25:03,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-23 04:25:03,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763382185] [2023-12-23 04:25:03,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-23 04:25:03,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 04:25:03,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:25:03,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 04:25:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-23 04:25:03,108 INFO L87 Difference]: Start difference. First operand 3783 states and 6038 transitions. Second operand has 9 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 4 states have call successors, (192), 3 states have call predecessors, (192), 5 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) [2023-12-23 04:25:08,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:25:08,771 INFO L93 Difference]: Finished difference Result 7365 states and 11697 transitions. [2023-12-23 04:25:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-23 04:25:08,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 4 states have call successors, (192), 3 states have call predecessors, (192), 5 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) Word has length 667 [2023-12-23 04:25:08,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:25:08,818 INFO L225 Difference]: With dead ends: 7365 [2023-12-23 04:25:08,818 INFO L226 Difference]: Without dead ends: 3861 [2023-12-23 04:25:08,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2090 GetRequests, 2074 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2023-12-23 04:25:08,833 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 708 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:25:08,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 877 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-23 04:25:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2023-12-23 04:25:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3815. [2023-12-23 04:25:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3815 states, 2754 states have (on average 1.466957153231663) internal successors, (4040), 2784 states have internal predecessors, (4040), 993 states have call successors, (993), 67 states have call predecessors, (993), 67 states have return successors, (993), 963 states have call predecessors, (993), 993 states have call successors, (993) [2023-12-23 04:25:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 6026 transitions. [2023-12-23 04:25:09,229 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 6026 transitions. Word has length 667 [2023-12-23 04:25:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:25:09,230 INFO L495 AbstractCegarLoop]: Abstraction has 3815 states and 6026 transitions. [2023-12-23 04:25:09,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 4 states have call successors, (192), 3 states have call predecessors, (192), 5 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) [2023-12-23 04:25:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 6026 transitions. [2023-12-23 04:25:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-12-23 04:25:09,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:25:09,236 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:09,274 INFO L552 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 (27)] Ended with exit code 0 [2023-12-23 04:25:09,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-12-23 04:25:09,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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=3,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:25:09,653 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:25:09,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:25:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1410667681, now seen corresponding path program 1 times [2023-12-23 04:25:09,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:25:09,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177228076] [2023-12-23 04:25:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:25:09,654 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 04:25:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:25:09,655 INFO L229 MonitoredProcess]: Starting monitored process 29 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 04:25:09,656 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 (29)] Waiting until timeout for monitored process [2023-12-23 04:25:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:25:11,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 04:25:11,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:25:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 8447 proven. 135 refuted. 0 times theorem prover too weak. 13258 trivial. 0 not checked. [2023-12-23 04:25:14,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:25:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 483 proven. 138 refuted. 0 times theorem prover too weak. 21219 trivial. 0 not checked. [2023-12-23 04:25:15,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:25:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177228076] [2023-12-23 04:25:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177228076] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:25:15,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:25:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-23 04:25:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872505725] [2023-12-23 04:25:15,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:25:15,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 04:25:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:25:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 04:25:15,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-23 04:25:15,705 INFO L87 Difference]: Start difference. First operand 3815 states and 6026 transitions. Second operand has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 4 states have call successors, (130), 3 states have call predecessors, (130), 7 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) [2023-12-23 04:25:21,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:23,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:28,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:32,128 WARN L539 Checker$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 04:25:36,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:38,021 WARN L539 Checker$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 04:25:39,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:25:40,014 INFO L93 Difference]: Finished difference Result 7277 states and 11399 transitions. [2023-12-23 04:25:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-23 04:25:40,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 4 states have call successors, (130), 3 states have call predecessors, (130), 7 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) Word has length 667 [2023-12-23 04:25:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:25:40,061 INFO L225 Difference]: With dead ends: 7277 [2023-12-23 04:25:40,061 INFO L226 Difference]: Without dead ends: 3901 [2023-12-23 04:25:40,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1320 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2023-12-23 04:25:40,070 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 779 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 349 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:25:40,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1168 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 790 Invalid, 3 Unknown, 0 Unchecked, 23.6s Time] [2023-12-23 04:25:40,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2023-12-23 04:25:40,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3855. [2023-12-23 04:25:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3855 states, 2784 states have (on average 1.444683908045977) internal successors, (4022), 2814 states have internal predecessors, (4022), 993 states have call successors, (993), 77 states have call predecessors, (993), 77 states have return successors, (993), 963 states have call predecessors, (993), 993 states have call successors, (993) [2023-12-23 04:25:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 6008 transitions. [2023-12-23 04:25:40,497 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 6008 transitions. Word has length 667 [2023-12-23 04:25:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:25:40,499 INFO L495 AbstractCegarLoop]: Abstraction has 3855 states and 6008 transitions. [2023-12-23 04:25:40,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 4 states have call successors, (130), 3 states have call predecessors, (130), 7 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) [2023-12-23 04:25:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 6008 transitions. [2023-12-23 04:25:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:25:40,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:25:40,505 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:40,552 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 (29)] Forceful destruction successful, exit code 0 [2023-12-23 04:25:40,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 04:25:40,721 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:25:40,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:25:40,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1037222484, now seen corresponding path program 1 times [2023-12-23 04:25:40,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:25:40,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015816699] [2023-12-23 04:25:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:25:40,723 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 04:25:40,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:25:40,724 INFO L229 MonitoredProcess]: Starting monitored process 30 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 04:25:40,744 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 (30)] Waiting until timeout for monitored process [2023-12-23 04:25:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:25:42,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:25:42,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:25:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 10952 proven. 168 refuted. 0 times theorem prover too weak. 10720 trivial. 0 not checked. [2023-12-23 04:25:45,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:25:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 144 proven. 168 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2023-12-23 04:25:46,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:25:46,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015816699] [2023-12-23 04:25:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015816699] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:25:46,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:25:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 04:25:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675170038] [2023-12-23 04:25:46,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:25:46,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 04:25:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:25:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 04:25:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:25:46,842 INFO L87 Difference]: Start difference. First operand 3855 states and 6008 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 2 states have call successors, (161), 2 states have call predecessors, (161), 4 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) [2023-12-23 04:25:52,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:55,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:25:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:25:59,085 INFO L93 Difference]: Finished difference Result 11121 states and 17238 transitions. [2023-12-23 04:25:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 04:25:59,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 2 states have call successors, (161), 2 states have call predecessors, (161), 4 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) Word has length 669 [2023-12-23 04:25:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:25:59,159 INFO L225 Difference]: With dead ends: 11121 [2023-12-23 04:25:59,160 INFO L226 Difference]: Without dead ends: 7617 [2023-12-23 04:25:59,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1348 GetRequests, 1330 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 04:25:59,171 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 744 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-12-23 04:25:59,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1671 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-12-23 04:25:59,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2023-12-23 04:25:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7511. [2023-12-23 04:25:59,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7511 states, 5477 states have (on average 1.430345079423042) internal successors, (7834), 5537 states have internal predecessors, (7834), 1881 states have call successors, (1881), 152 states have call predecessors, (1881), 152 states have return successors, (1881), 1821 states have call predecessors, (1881), 1881 states have call successors, (1881) [2023-12-23 04:25:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 11596 transitions. [2023-12-23 04:25:59,970 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 11596 transitions. Word has length 669 [2023-12-23 04:25:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:25:59,972 INFO L495 AbstractCegarLoop]: Abstraction has 7511 states and 11596 transitions. [2023-12-23 04:25:59,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 2 states have call successors, (161), 2 states have call predecessors, (161), 4 states have return successors, (162), 2 states have call predecessors, (162), 2 states have call successors, (162) [2023-12-23 04:25:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 11596 transitions. [2023-12-23 04:25:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:25:59,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:25:59,981 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:00,019 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 (30)] Forceful destruction successful, exit code 0 [2023-12-23 04:26:00,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 04:26:00,195 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:26:00,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:26:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1460869206, now seen corresponding path program 1 times [2023-12-23 04:26:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:26:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750162307] [2023-12-23 04:26:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:26:00,197 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 04:26:00,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:26:00,198 INFO L229 MonitoredProcess]: Starting monitored process 31 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 04:26:00,208 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 (31)] Waiting until timeout for monitored process [2023-12-23 04:26:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:26:01,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-23 04:26:01,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:26:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 14993 proven. 330 refuted. 0 times theorem prover too weak. 6517 trivial. 0 not checked. [2023-12-23 04:26:10,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:26:11,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:26:11,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750162307] [2023-12-23 04:26:11,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750162307] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:26:11,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1097686745] [2023-12-23 04:26:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:26:11,788 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:26:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:26:11,790 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:26:11,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-23 04:26:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:26:17,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 04:26:17,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:26:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 4862 proven. 273 refuted. 0 times theorem prover too weak. 16705 trivial. 0 not checked. [2023-12-23 04:26:47,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:26:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 39 proven. 273 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2023-12-23 04:26:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1097686745] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:26:50,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-23 04:26:50,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2023-12-23 04:26:50,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476739854] [2023-12-23 04:26:50,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-23 04:26:50,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-23 04:26:50,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:26:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-23 04:26:50,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2023-12-23 04:26:50,491 INFO L87 Difference]: Start difference. First operand 7511 states and 11596 transitions. Second operand has 20 states, 20 states have (on average 21.2) internal successors, (424), 19 states have internal predecessors, (424), 7 states have call successors, (287), 6 states have call predecessors, (287), 10 states have return successors, (289), 7 states have call predecessors, (289), 7 states have call successors, (289) [2023-12-23 04:27:27,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:27:29,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:27:31,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:27:33,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:27:38,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:28:02,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:28:04,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:28:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:28:05,059 INFO L93 Difference]: Finished difference Result 21425 states and 32231 transitions. [2023-12-23 04:28:05,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-23 04:28:05,089 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 21.2) internal successors, (424), 19 states have internal predecessors, (424), 7 states have call successors, (287), 6 states have call predecessors, (287), 10 states have return successors, (289), 7 states have call predecessors, (289), 7 states have call successors, (289) Word has length 669 [2023-12-23 04:28:05,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:28:05,151 INFO L225 Difference]: With dead ends: 21425 [2023-12-23 04:28:05,151 INFO L226 Difference]: Without dead ends: 14803 [2023-12-23 04:28:05,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2188 GetRequests, 2123 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=1137, Invalid=3285, Unknown=0, NotChecked=0, Total=4422 [2023-12-23 04:28:05,175 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 2625 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 1171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2625 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1171 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:28:05,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2625 Valid, 1982 Invalid, 2819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1171 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 56.8s Time] [2023-12-23 04:28:05,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14803 states. [2023-12-23 04:28:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14803 to 7691. [2023-12-23 04:28:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7691 states, 5628 states have (on average 1.4017412935323383) internal successors, (7889), 5688 states have internal predecessors, (7889), 1849 states have call successors, (1849), 213 states have call predecessors, (1849), 213 states have return successors, (1849), 1789 states have call predecessors, (1849), 1849 states have call successors, (1849) [2023-12-23 04:28:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7691 states to 7691 states and 11587 transitions. [2023-12-23 04:28:06,524 INFO L78 Accepts]: Start accepts. Automaton has 7691 states and 11587 transitions. Word has length 669 [2023-12-23 04:28:06,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:28:06,525 INFO L495 AbstractCegarLoop]: Abstraction has 7691 states and 11587 transitions. [2023-12-23 04:28:06,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 21.2) internal successors, (424), 19 states have internal predecessors, (424), 7 states have call successors, (287), 6 states have call predecessors, (287), 10 states have return successors, (289), 7 states have call predecessors, (289), 7 states have call successors, (289) [2023-12-23 04:28:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7691 states and 11587 transitions. [2023-12-23 04:28:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:28:06,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:28:06,533 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:06,584 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 (31)] Forceful destruction successful, exit code 0 [2023-12-23 04:28:06,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-12-23 04:28:06,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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=3,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:28:06,949 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:28:06,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:28:06,949 INFO L85 PathProgramCache]: Analyzing trace with hash -695568544, now seen corresponding path program 1 times [2023-12-23 04:28:06,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:28:06,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960115347] [2023-12-23 04:28:06,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:28:06,950 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 04:28:06,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:28:06,951 INFO L229 MonitoredProcess]: Starting monitored process 33 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 04:28:06,952 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 (33)] Waiting until timeout for monitored process [2023-12-23 04:28:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:28:08,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 04:28:08,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:28:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 5474 proven. 267 refuted. 0 times theorem prover too weak. 16099 trivial. 0 not checked. [2023-12-23 04:28:13,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:28:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 45 proven. 267 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2023-12-23 04:28:16,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:28:16,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960115347] [2023-12-23 04:28:16,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960115347] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:28:16,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:28:16,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-23 04:28:16,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550749679] [2023-12-23 04:28:16,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:28:16,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 04:28:16,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:28:16,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 04:28:16,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:28:16,025 INFO L87 Difference]: Start difference. First operand 7691 states and 11587 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 2 states have call successors, (194), 2 states have call predecessors, (194), 4 states have return successors, (195), 2 states have call predecessors, (195), 2 states have call successors, (195) [2023-12-23 04:28:22,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:28:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:28:22,967 INFO L93 Difference]: Finished difference Result 11083 states and 16523 transitions. [2023-12-23 04:28:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 04:28:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 2 states have call successors, (194), 2 states have call predecessors, (194), 4 states have return successors, (195), 2 states have call predecessors, (195), 2 states have call successors, (195) Word has length 670 [2023-12-23 04:28:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:28:23,012 INFO L225 Difference]: With dead ends: 11083 [2023-12-23 04:28:23,012 INFO L226 Difference]: Without dead ends: 4589 [2023-12-23 04:28:23,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1347 GetRequests, 1331 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-23 04:28:23,026 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 429 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-23 04:28:23,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1150 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-23 04:28:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2023-12-23 04:28:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 4489. [2023-12-23 04:28:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 3379 states have (on average 1.3933116306599587) internal successors, (4708), 3409 states have internal predecessors, (4708), 977 states have call successors, (977), 132 states have call predecessors, (977), 132 states have return successors, (977), 947 states have call predecessors, (977), 977 states have call successors, (977) [2023-12-23 04:28:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6662 transitions. [2023-12-23 04:28:23,629 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6662 transitions. Word has length 670 [2023-12-23 04:28:23,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:28:23,630 INFO L495 AbstractCegarLoop]: Abstraction has 4489 states and 6662 transitions. [2023-12-23 04:28:23,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 2 states have call successors, (194), 2 states have call predecessors, (194), 4 states have return successors, (195), 2 states have call predecessors, (195), 2 states have call successors, (195) [2023-12-23 04:28:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6662 transitions. [2023-12-23 04:28:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:28:23,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:28:23,637 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:23,686 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 (33)] Forceful destruction successful, exit code 0 [2023-12-23 04:28:23,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 04:28:23,853 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:28:23,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:28:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -15510174, now seen corresponding path program 1 times [2023-12-23 04:28:23,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:28:23,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710623363] [2023-12-23 04:28:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:28:23,854 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 04:28:23,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:28:23,855 INFO L229 MonitoredProcess]: Starting monitored process 34 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 04:28:23,856 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 (34)] Waiting until timeout for monitored process [2023-12-23 04:28:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:28:25,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-23 04:28:25,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:29:41,401 WARN L293 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 04:30:26,439 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 04:30:57,137 WARN L293 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 04:31:37,479 WARN L293 SmtUtils]: Spent 8.77s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 04:32:35,291 WARN L293 SmtUtils]: Spent 15.22s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)