/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-28.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 04:33:12,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 04:33:12,703 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 04:33:12,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 04:33:12,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 04:33:12,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 04:33:12,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 04:33:12,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 04:33:12,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 04:33:12,722 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 04:33:12,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 04:33:12,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 04:33:12,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 04:33:12,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 04:33:12,723 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 04:33:12,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 04:33:12,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 04:33:12,724 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 04:33:12,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 04:33:12,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 04:33:12,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 04:33:12,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 04:33:12,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 04:33:12,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 04:33:12,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 04:33:12,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 04:33:12,741 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 04:33:12,741 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 04:33:12,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 04:33:12,742 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 04:33:12,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 04:33:12,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 04:33:12,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 04:33:12,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 04:33:12,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:33:12,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 04:33:12,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 04:33:12,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 04:33:12,743 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 04:33:12,744 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 04:33:12,744 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 04:33:12,744 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 04:33:12,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 04:33:12,744 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 04:33:12,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 04:33:12,745 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 04:33:12,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 04:33:12,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 04:33:12,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 04:33:12,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 04:33:12,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 04:33:12,976 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 04:33:12,978 INFO L431 ainManager$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-28.i [2023-12-23 04:33:14,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 04:33:14,303 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 04:33:14,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i [2023-12-23 04:33:14,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e058c4b/bb746accdee94312b2941709a80f291c/FLAGbb7b198d5 [2023-12-23 04:33:14,330 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e058c4b/bb746accdee94312b2941709a80f291c [2023-12-23 04:33:14,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 04:33:14,333 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 04:33:14,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 04:33:14,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 04:33:14,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 04:33:14,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9f9bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14, skipping insertion in model container [2023-12-23 04:33:14,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 04:33:14,524 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-28.i[916,929] [2023-12-23 04:33:14,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:33:14,752 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 04:33:14,765 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-28.i[916,929] [2023-12-23 04:33:14,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:33:14,854 INFO L206 MainTranslator]: Completed translation [2023-12-23 04:33:14,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14 WrapperNode [2023-12-23 04:33:14,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 04:33:14,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 04:33:14,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 04:33:14,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 04:33:14,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,924 INFO L138 Inliner]: procedures = 27, calls = 141, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 744 [2023-12-23 04:33:14,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 04:33:14,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 04:33:14,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 04:33:14,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 04:33:14,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,989 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 04:33:14,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:14,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 04:33:15,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 04:33:15,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 04:33:15,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 04:33:15,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (1/1) ... [2023-12-23 04:33:15,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:33:15,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 04:33:15,126 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 04:33:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 04:33:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 04:33:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 04:33:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 04:33:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 04:33:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 04:33:15,143 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 04:33:15,287 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 04:33:15,289 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 04:34:05,322 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 04:34:05,405 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 04:34:05,406 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 04:34:05,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:34:05 BoogieIcfgContainer [2023-12-23 04:34:05,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 04:34:05,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 04:34:05,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 04:34:05,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 04:34:05,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:33:14" (1/3) ... [2023-12-23 04:34:05,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727c5519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:34:05, skipping insertion in model container [2023-12-23 04:34:05,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:33:14" (2/3) ... [2023-12-23 04:34:05,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727c5519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:34:05, skipping insertion in model container [2023-12-23 04:34:05,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:34:05" (3/3) ... [2023-12-23 04:34:05,414 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-28.i [2023-12-23 04:34:05,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 04:34:05,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 04:34:05,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 04:34:05,474 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;@5523b8f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 04:34:05,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 04:34:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 204 states have (on average 1.553921568627451) internal successors, (317), 205 states have internal predecessors, (317), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-23 04:34:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2023-12-23 04:34:05,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:34:05,531 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:05,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:34:05,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:34:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -891954253, now seen corresponding path program 1 times [2023-12-23 04:34:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:34:05,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110690539] [2023-12-23 04:34:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:34:05,550 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 04:34:05,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:34:05,555 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 04:34:05,588 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 04:34:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:34:08,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 04:34:08,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:34:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 13574 proven. 0 refuted. 0 times theorem prover too weak. 18938 trivial. 0 not checked. [2023-12-23 04:34:08,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:34:08,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:34:08,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110690539] [2023-12-23 04:34:08,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110690539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:34:08,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:34:08,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 04:34:08,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353790941] [2023-12-23 04:34:08,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:34:08,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 04:34:08,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:34:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 04:34:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 04:34:08,195 INFO L87 Difference]: Start difference. First operand has 335 states, 204 states have (on average 1.553921568627451) internal successors, (317), 205 states have internal predecessors, (317), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2023-12-23 04:34:08,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:34:08,547 INFO L93 Difference]: Finished difference Result 661 states and 1260 transitions. [2023-12-23 04:34:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 04:34:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) Word has length 787 [2023-12-23 04:34:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:34:08,575 INFO L225 Difference]: With dead ends: 661 [2023-12-23 04:34:08,575 INFO L226 Difference]: Without dead ends: 327 [2023-12-23 04:34:08,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 786 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 04:34:08,589 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 04:34:08,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 551 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 04:34:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-23 04:34:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-12-23 04:34:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 197 states have (on average 1.5126903553299493) internal successors, (298), 197 states have internal predecessors, (298), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-23 04:34:08,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 554 transitions. [2023-12-23 04:34:08,671 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 554 transitions. Word has length 787 [2023-12-23 04:34:08,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:34:08,672 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 554 transitions. [2023-12-23 04:34:08,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2023-12-23 04:34:08,672 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 554 transitions. [2023-12-23 04:34:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2023-12-23 04:34:08,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:34:08,690 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:08,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 04:34:08,904 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 04:34:08,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:34:08,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:34:08,906 INFO L85 PathProgramCache]: Analyzing trace with hash 112315879, now seen corresponding path program 1 times [2023-12-23 04:34:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:34:08,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578056752] [2023-12-23 04:34:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:34:08,907 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 04:34:08,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:34:08,909 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 04:34:08,910 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 04:34:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:34:11,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:34:11,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:34:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 15571 proven. 147 refuted. 0 times theorem prover too weak. 16794 trivial. 0 not checked. [2023-12-23 04:34:17,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:34:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 234 proven. 147 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:34:20,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:34:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578056752] [2023-12-23 04:34:20,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578056752] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:34:20,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:34:20,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 04:34:20,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010734580] [2023-12-23 04:34:20,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:34:20,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 04:34:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:34:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 04:34:20,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:34:20,635 INFO L87 Difference]: Start difference. First operand 327 states and 554 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (177), 2 states have call predecessors, (177), 4 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2023-12-23 04:34:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:34:35,959 INFO L93 Difference]: Finished difference Result 781 states and 1311 transitions. [2023-12-23 04:34:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 04:34:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (177), 2 states have call predecessors, (177), 4 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) Word has length 787 [2023-12-23 04:34:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:34:35,966 INFO L225 Difference]: With dead ends: 781 [2023-12-23 04:34:35,966 INFO L226 Difference]: Without dead ends: 455 [2023-12-23 04:34:35,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1576 GetRequests, 1566 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:34:35,969 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 329 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:34:35,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1348 Invalid, 1271 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-12-23 04:34:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-23 04:34:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 450. [2023-12-23 04:34:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 241 states have (on average 1.4066390041493777) internal successors, (339), 242 states have internal predecessors, (339), 206 states have call successors, (206), 2 states have call predecessors, (206), 2 states have return successors, (206), 205 states have call predecessors, (206), 206 states have call successors, (206) [2023-12-23 04:34:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 751 transitions. [2023-12-23 04:34:36,009 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 751 transitions. Word has length 787 [2023-12-23 04:34:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:34:36,011 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 751 transitions. [2023-12-23 04:34:36,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (177), 2 states have call predecessors, (177), 4 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2023-12-23 04:34:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 751 transitions. [2023-12-23 04:34:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:34:36,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:34:36,026 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:36,101 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 04:34:36,244 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 04:34:36,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:34:36,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:34:36,245 INFO L85 PathProgramCache]: Analyzing trace with hash 742650038, now seen corresponding path program 1 times [2023-12-23 04:34:36,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:34:36,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602897653] [2023-12-23 04:34:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:34:36,247 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 04:34:36,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:34:36,249 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 04:34:36,250 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 04:34:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:34:38,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:34:38,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:34:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 15261 proven. 240 refuted. 0 times theorem prover too weak. 17011 trivial. 0 not checked. [2023-12-23 04:34:48,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:34:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 141 proven. 240 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:34:55,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:34:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602897653] [2023-12-23 04:34:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602897653] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:34:55,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:34:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-23 04:34:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173486531] [2023-12-23 04:34:55,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:34:55,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-23 04:34:55,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:34:55,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-23 04:34:55,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-23 04:34:55,725 INFO L87 Difference]: Start difference. First operand 450 states and 751 transitions. Second operand has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 3 states have call successors, (208), 2 states have call predecessors, (208), 4 states have return successors, (209), 3 states have call predecessors, (209), 3 states have call successors, (209) [2023-12-23 04:35:20,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:35:20,617 INFO L93 Difference]: Finished difference Result 1445 states and 2397 transitions. [2023-12-23 04:35:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 04:35:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 3 states have call successors, (208), 2 states have call predecessors, (208), 4 states have return successors, (209), 3 states have call predecessors, (209), 3 states have call successors, (209) Word has length 788 [2023-12-23 04:35:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:35:20,625 INFO L225 Difference]: With dead ends: 1445 [2023-12-23 04:35:20,625 INFO L226 Difference]: Without dead ends: 1116 [2023-12-23 04:35:20,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1592 GetRequests, 1568 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=199, Invalid=451, Unknown=0, NotChecked=0, Total=650 [2023-12-23 04:35:20,628 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 2046 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 1056 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1056 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-12-23 04:35:20,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 2140 Invalid, 2806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1056 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 22.9s Time] [2023-12-23 04:35:20,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-12-23 04:35:20,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 781. [2023-12-23 04:35:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 439 states have (on average 1.428246013667426) internal successors, (627), 441 states have internal predecessors, (627), 334 states have call successors, (334), 7 states have call predecessors, (334), 7 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) [2023-12-23 04:35:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1295 transitions. [2023-12-23 04:35:20,725 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1295 transitions. Word has length 788 [2023-12-23 04:35:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:35:20,726 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1295 transitions. [2023-12-23 04:35:20,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 3 states have call successors, (208), 2 states have call predecessors, (208), 4 states have return successors, (209), 3 states have call predecessors, (209), 3 states have call successors, (209) [2023-12-23 04:35:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1295 transitions. [2023-12-23 04:35:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:35:20,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:35:20,733 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:20,793 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 04:35:20,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:35:20,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:35:20,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:35:20,950 INFO L85 PathProgramCache]: Analyzing trace with hash 540826104, now seen corresponding path program 1 times [2023-12-23 04:35:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:35:20,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293563280] [2023-12-23 04:35:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:35:20,951 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 04:35:20,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:35:20,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:35:20,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 04:35:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:35:23,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:35:23,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:35:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2023-12-23 04:35:40,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:35:40,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:35:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293563280] [2023-12-23 04:35:40,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293563280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:35:40,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:35:40,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 04:35:40,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725710202] [2023-12-23 04:35:40,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:35:40,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:35:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:35:40,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:35:40,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 04:35:40,300 INFO L87 Difference]: Start difference. First operand 781 states and 1295 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:35:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:35:43,152 INFO L93 Difference]: Finished difference Result 2093 states and 3481 transitions. [2023-12-23 04:35:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:35:43,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 788 [2023-12-23 04:35:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:35:43,498 INFO L225 Difference]: With dead ends: 2093 [2023-12-23 04:35:43,498 INFO L226 Difference]: Without dead ends: 1437 [2023-12-23 04:35:43,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 786 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 04:35:43,505 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 163 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:35:43,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1083 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-23 04:35:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2023-12-23 04:35:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1193. [2023-12-23 04:35:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 720 states have (on average 1.4902777777777778) internal successors, (1073), 722 states have internal predecessors, (1073), 462 states have call successors, (462), 10 states have call predecessors, (462), 10 states have return successors, (462), 460 states have call predecessors, (462), 462 states have call successors, (462) [2023-12-23 04:35:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1997 transitions. [2023-12-23 04:35:43,651 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1997 transitions. Word has length 788 [2023-12-23 04:35:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:35:43,652 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1997 transitions. [2023-12-23 04:35:43,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:35:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1997 transitions. [2023-12-23 04:35:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:35:43,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:35:43,658 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:43,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 04:35:43,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:35:43,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:35:43,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:35:43,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1621773512, now seen corresponding path program 1 times [2023-12-23 04:35:43,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:35:43,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714244062] [2023-12-23 04:35:43,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:35:43,883 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 04:35:43,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:35:43,884 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 04:35:43,911 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 04:35:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:35:46,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:35:46,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:35:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2023-12-23 04:35:46,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:35:46,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:35:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714244062] [2023-12-23 04:35:46,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714244062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:35:46,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:35:46,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 04:35:46,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045399958] [2023-12-23 04:35:46,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:35:46,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:35:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:35:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:35:46,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 04:35:46,813 INFO L87 Difference]: Start difference. First operand 1193 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:35:48,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:35:48,643 INFO L93 Difference]: Finished difference Result 2876 states and 4852 transitions. [2023-12-23 04:35:48,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:35:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 788 [2023-12-23 04:35:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:35:48,653 INFO L225 Difference]: With dead ends: 2876 [2023-12-23 04:35:48,654 INFO L226 Difference]: Without dead ends: 1808 [2023-12-23 04:35:48,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 786 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 04:35:48,658 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 292 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:35:48,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1124 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-23 04:35:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-23 04:35:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1803. [2023-12-23 04:35:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1203 states have (on average 1.5552784704904405) internal successors, (1871), 1208 states have internal predecessors, (1871), 585 states have call successors, (585), 14 states have call predecessors, (585), 14 states have return successors, (585), 580 states have call predecessors, (585), 585 states have call successors, (585) [2023-12-23 04:35:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 3041 transitions. [2023-12-23 04:35:48,833 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 3041 transitions. Word has length 788 [2023-12-23 04:35:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:35:48,836 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 3041 transitions. [2023-12-23 04:35:48,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:35:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 3041 transitions. [2023-12-23 04:35:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:35:48,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:35:48,847 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:48,907 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 04:35:49,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:35:49,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:35:49,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:35:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash 820306228, now seen corresponding path program 1 times [2023-12-23 04:35:49,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:35:49,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630166467] [2023-12-23 04:35:49,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:35:49,075 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 04:35:49,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:35:49,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:35:49,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 04:35:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:35:51,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:35:51,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:35:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 13627 proven. 111 refuted. 0 times theorem prover too weak. 18774 trivial. 0 not checked. [2023-12-23 04:35:57,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:36:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 270 proven. 111 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:36:00,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:36:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630166467] [2023-12-23 04:36:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630166467] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:36:00,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:36:00,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 04:36:00,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702222399] [2023-12-23 04:36:00,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:36:00,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 04:36:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:36:00,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 04:36:00,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:36:00,239 INFO L87 Difference]: Start difference. First operand 1803 states and 3041 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) [2023-12-23 04:36:11,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:36:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:36:13,113 INFO L93 Difference]: Finished difference Result 3511 states and 5908 transitions. [2023-12-23 04:36:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 04:36:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) Word has length 788 [2023-12-23 04:36:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:36:13,145 INFO L225 Difference]: With dead ends: 3511 [2023-12-23 04:36:13,145 INFO L226 Difference]: Without dead ends: 1837 [2023-12-23 04:36:13,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1582 GetRequests, 1568 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 04:36:13,152 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1013 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:36:13,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 936 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-23 04:36:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2023-12-23 04:36:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1815. [2023-12-23 04:36:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1212 states have (on average 1.5264026402640265) internal successors, (1850), 1217 states have internal predecessors, (1850), 585 states have call successors, (585), 17 states have call predecessors, (585), 17 states have return successors, (585), 580 states have call predecessors, (585), 585 states have call successors, (585) [2023-12-23 04:36:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 3020 transitions. [2023-12-23 04:36:13,320 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 3020 transitions. Word has length 788 [2023-12-23 04:36:13,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:36:13,321 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 3020 transitions. [2023-12-23 04:36:13,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) [2023-12-23 04:36:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 3020 transitions. [2023-12-23 04:36:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:36:13,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:36:13,328 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:13,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 04:36:13,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:36:13,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:36:13,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:36:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash 467217846, now seen corresponding path program 1 times [2023-12-23 04:36:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:36:13,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551728855] [2023-12-23 04:36:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:36:13,559 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 04:36:13,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:36:13,561 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 04:36:13,563 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 04:36:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:36:16,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:36:16,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:36:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2023-12-23 04:36:32,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:36:32,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:36:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551728855] [2023-12-23 04:36:32,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551728855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:36:32,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:36:32,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 04:36:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463726406] [2023-12-23 04:36:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:36:32,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:36:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:36:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:36:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 04:36:32,020 INFO L87 Difference]: Start difference. First operand 1815 states and 3020 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:36:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:36:32,639 INFO L93 Difference]: Finished difference Result 3501 states and 5835 transitions. [2023-12-23 04:36:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:36:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 788 [2023-12-23 04:36:32,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:36:32,666 INFO L225 Difference]: With dead ends: 3501 [2023-12-23 04:36:32,666 INFO L226 Difference]: Without dead ends: 1815 [2023-12-23 04:36:32,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 786 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 04:36:32,670 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 04:36:32,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 539 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 04:36:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2023-12-23 04:36:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2023-12-23 04:36:32,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1212 states have (on average 1.5148514851485149) internal successors, (1836), 1217 states have internal predecessors, (1836), 585 states have call successors, (585), 17 states have call predecessors, (585), 17 states have return successors, (585), 580 states have call predecessors, (585), 585 states have call successors, (585) [2023-12-23 04:36:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 3006 transitions. [2023-12-23 04:36:32,833 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 3006 transitions. Word has length 788 [2023-12-23 04:36:32,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:36:32,834 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 3006 transitions. [2023-12-23 04:36:32,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:36:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 3006 transitions. [2023-12-23 04:36:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:36:32,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:36:32,841 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:32,899 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 04:36:33,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:36:33,053 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:36:33,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:36:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1899476748, now seen corresponding path program 1 times [2023-12-23 04:36:33,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:36:33,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761200072] [2023-12-23 04:36:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:36:33,054 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 04:36:33,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:36:33,056 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:36:33,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 04:36:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:36:35,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:36:35,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:36:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 13627 proven. 111 refuted. 0 times theorem prover too weak. 18774 trivial. 0 not checked. [2023-12-23 04:36:40,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:36:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 270 proven. 111 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:36:43,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:36:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761200072] [2023-12-23 04:36:43,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761200072] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:36:43,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:36:43,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 04:36:43,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017819478] [2023-12-23 04:36:43,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:36:43,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 04:36:43,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:36:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 04:36:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:36:43,729 INFO L87 Difference]: Start difference. First operand 1815 states and 3006 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) [2023-12-23 04:36:55,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:36:55,146 INFO L93 Difference]: Finished difference Result 3515 states and 5813 transitions. [2023-12-23 04:36:55,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 04:36:55,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) Word has length 788 [2023-12-23 04:36:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:36:55,182 INFO L225 Difference]: With dead ends: 3515 [2023-12-23 04:36:55,182 INFO L226 Difference]: Without dead ends: 1829 [2023-12-23 04:36:55,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1582 GetRequests, 1568 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 04:36:55,186 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 524 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:36:55,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 927 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-12-23 04:36:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2023-12-23 04:36:55,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1807. [2023-12-23 04:36:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1204 states have (on average 1.4983388704318936) internal successors, (1804), 1209 states have internal predecessors, (1804), 585 states have call successors, (585), 17 states have call predecessors, (585), 17 states have return successors, (585), 580 states have call predecessors, (585), 585 states have call successors, (585) [2023-12-23 04:36:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2974 transitions. [2023-12-23 04:36:55,328 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2974 transitions. Word has length 788 [2023-12-23 04:36:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:36:55,328 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2974 transitions. [2023-12-23 04:36:55,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 2 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (166), 2 states have call predecessors, (166), 2 states have call successors, (166) [2023-12-23 04:36:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2974 transitions. [2023-12-23 04:36:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-12-23 04:36:55,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:36:55,353 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:55,415 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 (9)] Ended with exit code 0 [2023-12-23 04:36:55,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 04:36:55,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:36:55,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:36:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1498097270, now seen corresponding path program 1 times [2023-12-23 04:36:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:36:55,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720319531] [2023-12-23 04:36:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:36:55,558 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 04:36:55,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:36:55,559 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 04:36:55,563 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 04:36:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:36:57,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:36:57,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:37:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 14403 proven. 123 refuted. 0 times theorem prover too weak. 17986 trivial. 0 not checked. [2023-12-23 04:37:04,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:37:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 258 proven. 123 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:37:07,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:37:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720319531] [2023-12-23 04:37:07,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720319531] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:37:07,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:37:07,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 04:37:07,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231404935] [2023-12-23 04:37:07,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:37:07,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 04:37:07,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:37:07,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 04:37:07,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:37:07,704 INFO L87 Difference]: Start difference. First operand 1807 states and 2974 transitions. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2023-12-23 04:37:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:37:25,197 INFO L93 Difference]: Finished difference Result 3539 states and 5801 transitions. [2023-12-23 04:37:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 04:37:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) Word has length 788 [2023-12-23 04:37:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:37:25,205 INFO L225 Difference]: With dead ends: 3539 [2023-12-23 04:37:25,205 INFO L226 Difference]: Without dead ends: 1861 [2023-12-23 04:37:25,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1578 GetRequests, 1568 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:37:25,209 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 284 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:37:25,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1339 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2023-12-23 04:37:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2023-12-23 04:37:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1836. [2023-12-23 04:37:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1221 states have (on average 1.4684684684684686) internal successors, (1793), 1226 states have internal predecessors, (1793), 593 states have call successors, (593), 21 states have call predecessors, (593), 21 states have return successors, (593), 588 states have call predecessors, (593), 593 states have call successors, (593) [2023-12-23 04:37:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2979 transitions. [2023-12-23 04:37:25,389 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2979 transitions. Word has length 788 [2023-12-23 04:37:25,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:37:25,390 INFO L495 AbstractCegarLoop]: Abstraction has 1836 states and 2979 transitions. [2023-12-23 04:37:25,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2023-12-23 04:37:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2979 transitions. [2023-12-23 04:37:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-12-23 04:37:25,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:37:25,397 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:25,461 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 (10)] Ended with exit code 0 [2023-12-23 04:37:25,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 04:37:25,621 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:37:25,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:37:25,621 INFO L85 PathProgramCache]: Analyzing trace with hash 22620093, now seen corresponding path program 1 times [2023-12-23 04:37:25,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:37:25,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10077623] [2023-12-23 04:37:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:37:25,623 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 04:37:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:37:25,625 INFO L229 MonitoredProcess]: Starting monitored process 11 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 04:37:25,626 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 (11)] Waiting until timeout for monitored process [2023-12-23 04:37:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:37:28,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:37:28,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:37:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 15327 proven. 141 refuted. 0 times theorem prover too weak. 17044 trivial. 0 not checked. [2023-12-23 04:37:35,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:37:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 240 proven. 141 refuted. 0 times theorem prover too weak. 32131 trivial. 0 not checked. [2023-12-23 04:37:38,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:37:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10077623] [2023-12-23 04:37:38,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10077623] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:37:38,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:37:38,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 04:37:38,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727957479] [2023-12-23 04:37:38,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:37:38,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 04:37:38,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:37:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 04:37:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 04:37:38,791 INFO L87 Difference]: Start difference. First operand 1836 states and 2979 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (175), 2 states have call predecessors, (175), 4 states have return successors, (176), 2 states have call predecessors, (176), 2 states have call successors, (176) [2023-12-23 04:37:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:37:47,672 INFO L93 Difference]: Finished difference Result 3558 states and 5757 transitions. [2023-12-23 04:37:47,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 04:37:47,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (175), 2 states have call predecessors, (175), 4 states have return successors, (176), 2 states have call predecessors, (176), 2 states have call successors, (176) Word has length 790 [2023-12-23 04:37:47,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:37:47,719 INFO L225 Difference]: With dead ends: 3558 [2023-12-23 04:37:47,719 INFO L226 Difference]: Without dead ends: 1868 [2023-12-23 04:37:47,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1582 GetRequests, 1572 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:37:47,723 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 285 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:37:47,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 926 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-23 04:37:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2023-12-23 04:37:47,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1844. [2023-12-23 04:37:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1225 states have (on average 1.4489795918367347) internal successors, (1775), 1230 states have internal predecessors, (1775), 593 states have call successors, (593), 25 states have call predecessors, (593), 25 states have return successors, (593), 588 states have call predecessors, (593), 593 states have call successors, (593) [2023-12-23 04:37:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2961 transitions. [2023-12-23 04:37:47,906 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2961 transitions. Word has length 790 [2023-12-23 04:37:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:37:47,906 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2961 transitions. [2023-12-23 04:37:47,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (175), 2 states have call predecessors, (175), 4 states have return successors, (176), 2 states have call predecessors, (176), 2 states have call successors, (176) [2023-12-23 04:37:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2961 transitions. [2023-12-23 04:37:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-12-23 04:37:47,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:37:47,913 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:47,993 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 (11)] Forceful destruction successful, exit code 0 [2023-12-23 04:37:48,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 04:37:48,137 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:37:48,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:37:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -294952843, now seen corresponding path program 1 times [2023-12-23 04:37:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:37:48,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713553167] [2023-12-23 04:37:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:37:48,138 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 04:37:48,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:37:48,139 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 04:37:48,172 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 04:37:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:37:50,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:37:50,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:38:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2023-12-23 04:38:07,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:38:07,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:38:07,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713553167] [2023-12-23 04:38:07,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713553167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:38:07,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:38:07,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 04:38:07,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654772372] [2023-12-23 04:38:07,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:38:07,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 04:38:07,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:38:07,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 04:38:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 04:38:07,772 INFO L87 Difference]: Start difference. First operand 1844 states and 2961 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:38:09,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:38:09,839 INFO L93 Difference]: Finished difference Result 5312 states and 8540 transitions. [2023-12-23 04:38:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 04:38:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 790 [2023-12-23 04:38:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:38:09,867 INFO L225 Difference]: With dead ends: 5312 [2023-12-23 04:38:09,867 INFO L226 Difference]: Without dead ends: 3618 [2023-12-23 04:38:09,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 04:38:09,871 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 427 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-23 04:38:09,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 2129 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-23 04:38:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2023-12-23 04:38:10,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 2938. [2023-12-23 04:38:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 1967 states have (on average 1.4544992374173868) internal successors, (2861), 1974 states have internal predecessors, (2861), 931 states have call successors, (931), 39 states have call predecessors, (931), 39 states have return successors, (931), 924 states have call predecessors, (931), 931 states have call successors, (931) [2023-12-23 04:38:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 4723 transitions. [2023-12-23 04:38:10,189 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 4723 transitions. Word has length 790 [2023-12-23 04:38:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:38:10,190 INFO L495 AbstractCegarLoop]: Abstraction has 2938 states and 4723 transitions. [2023-12-23 04:38:10,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2023-12-23 04:38:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 4723 transitions. [2023-12-23 04:38:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-12-23 04:38:10,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:38:10,197 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:38:10,257 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 04:38:10,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 04:38:10,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:38:10,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:38:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -553118281, now seen corresponding path program 1 times [2023-12-23 04:38:10,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:38:10,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618071246] [2023-12-23 04:38:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:38:10,412 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 04:38:10,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:38:10,414 INFO L229 MonitoredProcess]: Starting monitored process 13 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 04:38:10,415 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 (13)] Waiting until timeout for monitored process [2023-12-23 04:38:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:38:13,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-23 04:38:13,021 INFO L285 TraceCheckSpWp]: Computing forward predicates...