/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-100_file-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 23:50:15,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 23:50:15,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 23:50:15,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 23:50:15,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 23:50:15,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 23:50:15,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 23:50:15,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 23:50:15,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 23:50:15,870 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 23:50:15,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 23:50:15,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 23:50:15,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 23:50:15,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 23:50:15,872 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 23:50:15,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 23:50:15,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 23:50:15,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 23:50:15,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 23:50:15,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 23:50:15,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 23:50:15,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 23:50:15,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 23:50:15,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 23:50:15,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 23:50:15,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 23:50:15,878 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 23:50:15,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 23:50:15,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 23:50:15,878 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 23:50:15,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 23:50:16,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 23:50:16,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 23:50:16,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 23:50:16,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 23:50:16,083 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 23:50:16,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-15.i [2023-12-22 23:50:17,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 23:50:17,371 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 23:50:17,372 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-15.i [2023-12-22 23:50:17,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792ba143c/4258327fcaa043b0bf317097ebd53027/FLAGe5839a198 [2023-12-22 23:50:17,755 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792ba143c/4258327fcaa043b0bf317097ebd53027 [2023-12-22 23:50:17,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 23:50:17,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 23:50:17,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 23:50:17,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 23:50:17,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 23:50:17,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:50:17" (1/1) ... [2023-12-22 23:50:17,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f02d45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:17, skipping insertion in model container [2023-12-22 23:50:17,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:50:17" (1/1) ... [2023-12-22 23:50:17,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 23:50:17,896 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-100_file-15.i[916,929] [2023-12-22 23:50:17,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 23:50:18,010 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 23:50:18,018 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-100_file-15.i[916,929] [2023-12-22 23:50:18,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 23:50:18,070 INFO L206 MainTranslator]: Completed translation [2023-12-22 23:50:18,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18 WrapperNode [2023-12-22 23:50:18,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 23:50:18,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 23:50:18,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 23:50:18,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 23:50:18,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,138 INFO L138 Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 313 [2023-12-22 23:50:18,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 23:50:18,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 23:50:18,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 23:50:18,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 23:50:18,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,164 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]. [2023-12-22 23:50:18,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 23:50:18,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 23:50:18,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 23:50:18,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 23:50:18,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (1/1) ... [2023-12-22 23:50:18,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 23:50:18,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 23:50:18,210 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) [2023-12-22 23:50:18,215 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 [2023-12-22 23:50:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 23:50:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 23:50:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-22 23:50:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-22 23:50:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 23:50:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 23:50:18,353 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 23:50:18,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 23:50:24,590 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 23:50:24,644 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 23:50:24,645 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 23:50:24,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:50:24 BoogieIcfgContainer [2023-12-22 23:50:24,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 23:50:24,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 23:50:24,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 23:50:24,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 23:50:24,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:50:17" (1/3) ... [2023-12-22 23:50:24,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da7a252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:50:24, skipping insertion in model container [2023-12-22 23:50:24,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:50:18" (2/3) ... [2023-12-22 23:50:24,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da7a252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:50:24, skipping insertion in model container [2023-12-22 23:50:24,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:50:24" (3/3) ... [2023-12-22 23:50:24,651 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-15.i [2023-12-22 23:50:24,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 23:50:24,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 23:50:24,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 23:50:24,712 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;@3067855a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 23:50:24,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 23:50:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 77 states have (on average 1.4415584415584415) internal successors, (111), 78 states have internal predecessors, (111), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-22 23:50:24,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-22 23:50:24,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:50:24,745 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:50:24,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:50:24,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:50:24,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1939928036, now seen corresponding path program 1 times [2023-12-22 23:50:24,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:50:24,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607344694] [2023-12-22 23:50:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:50:24,762 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 [2023-12-22 23:50:24,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:50:24,764 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) [2023-12-22 23:50:24,772 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 [2023-12-22 23:50:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:50:25,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 23:50:25,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:50:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 2274 proven. 0 refuted. 0 times theorem prover too weak. 4338 trivial. 0 not checked. [2023-12-22 23:50:25,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:50:25,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:50:25,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607344694] [2023-12-22 23:50:25,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607344694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:50:25,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:50:25,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 23:50:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357103488] [2023-12-22 23:50:25,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:50:25,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 23:50:25,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:50:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 23:50:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 23:50:25,403 INFO L87 Difference]: Start difference. First operand has 138 states, 77 states have (on average 1.4415584415584415) internal successors, (111), 78 states have internal predecessors, (111), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-22 23:50:26,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:50:26,980 INFO L93 Difference]: Finished difference Result 273 states and 510 transitions. [2023-12-22 23:50:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 23:50:27,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 347 [2023-12-22 23:50:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:50:27,015 INFO L225 Difference]: With dead ends: 273 [2023-12-22 23:50:27,015 INFO L226 Difference]: Without dead ends: 136 [2023-12-22 23:50:27,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 23:50:27,020 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 23:50:27,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 23:50:27,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-22 23:50:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-12-22 23:50:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 76 states have (on average 1.394736842105263) internal successors, (106), 76 states have internal predecessors, (106), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-22 23:50:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 222 transitions. [2023-12-22 23:50:27,101 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 222 transitions. Word has length 347 [2023-12-22 23:50:27,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:50:27,101 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 222 transitions. [2023-12-22 23:50:27,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-22 23:50:27,101 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 222 transitions. [2023-12-22 23:50:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-22 23:50:27,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:50:27,107 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:50:27,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 23:50:27,330 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 [2023-12-22 23:50:27,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:50:27,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:50:27,332 INFO L85 PathProgramCache]: Analyzing trace with hash 238299692, now seen corresponding path program 1 times [2023-12-22 23:50:27,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:50:27,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790180280] [2023-12-22 23:50:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:50:27,333 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 [2023-12-22 23:50:27,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:50:27,335 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) [2023-12-22 23:50:27,339 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 [2023-12-22 23:50:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:50:27,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 23:50:27,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:50:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-22 23:50:30,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:50:30,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:50:30,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790180280] [2023-12-22 23:50:30,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790180280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:50:30,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:50:30,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 23:50:30,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104930519] [2023-12-22 23:50:30,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:50:30,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 23:50:30,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:50:30,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 23:50:30,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 23:50:30,715 INFO L87 Difference]: Start difference. First operand 136 states and 222 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-22 23:50:32,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:33,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:50:33,221 INFO L93 Difference]: Finished difference Result 407 states and 665 transitions. [2023-12-22 23:50:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 23:50:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 347 [2023-12-22 23:50:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:50:33,250 INFO L225 Difference]: With dead ends: 407 [2023-12-22 23:50:33,250 INFO L226 Difference]: Without dead ends: 272 [2023-12-22 23:50:33,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 23:50:33,252 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 135 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 23:50:33,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 644 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 23:50:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-22 23:50:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 252. [2023-12-22 23:50:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 133 states have internal predecessors, (181), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-22 23:50:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 413 transitions. [2023-12-22 23:50:33,368 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 413 transitions. Word has length 347 [2023-12-22 23:50:33,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:50:33,371 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 413 transitions. [2023-12-22 23:50:33,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-22 23:50:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 413 transitions. [2023-12-22 23:50:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-22 23:50:33,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:50:33,381 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:50:33,396 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 [2023-12-22 23:50:33,596 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 [2023-12-22 23:50:33,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:50:33,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:50:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1571015600, now seen corresponding path program 1 times [2023-12-22 23:50:33,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:50:33,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024724670] [2023-12-22 23:50:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:50:33,598 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 [2023-12-22 23:50:33,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:50:33,599 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) [2023-12-22 23:50:33,602 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 [2023-12-22 23:50:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:50:34,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 23:50:34,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:50:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-22 23:50:36,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:50:36,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:50:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024724670] [2023-12-22 23:50:36,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024724670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:50:36,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:50:36,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 23:50:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859402238] [2023-12-22 23:50:36,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:50:36,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 23:50:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:50:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 23:50:36,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 23:50:36,456 INFO L87 Difference]: Start difference. First operand 252 states and 413 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-22 23:50:38,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:42,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:46,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:50:50,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:50:53,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:50:54,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:51:07,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:51:11,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:51:13,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-22 23:51:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:51:14,670 INFO L93 Difference]: Finished difference Result 522 states and 855 transitions. [2023-12-22 23:51:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 23:51:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 348 [2023-12-22 23:51:14,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:51:14,696 INFO L225 Difference]: With dead ends: 522 [2023-12-22 23:51:14,696 INFO L226 Difference]: Without dead ends: 387 [2023-12-22 23:51:14,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 23:51:14,699 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 161 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 116 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2023-12-22 23:51:14,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 587 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 37.4s Time] [2023-12-22 23:51:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-22 23:51:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 254. [2023-12-22 23:51:14,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 135 states have (on average 1.3555555555555556) internal successors, (183), 135 states have internal predecessors, (183), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-22 23:51:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 415 transitions. [2023-12-22 23:51:14,781 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 415 transitions. Word has length 348 [2023-12-22 23:51:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:51:14,782 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 415 transitions. [2023-12-22 23:51:14,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-22 23:51:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 415 transitions. [2023-12-22 23:51:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-22 23:51:14,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:51:14,784 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:51:14,802 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 (4)] Ended with exit code 0 [2023-12-22 23:51:15,002 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 [2023-12-22 23:51:15,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:51:15,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:51:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash -869951022, now seen corresponding path program 1 times [2023-12-22 23:51:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:51:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813409941] [2023-12-22 23:51:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:51:15,005 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 [2023-12-22 23:51:15,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:51:15,006 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) [2023-12-22 23:51:15,017 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 [2023-12-22 23:51:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:51:15,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 23:51:15,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:51:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 39 proven. 2464 refuted. 0 times theorem prover too weak. 4109 trivial. 0 not checked. [2023-12-22 23:51:18,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 23:51:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 39 proven. 132 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2023-12-22 23:51:19,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:51:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813409941] [2023-12-22 23:51:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813409941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 23:51:19,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 23:51:19,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-22 23:51:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545610608] [2023-12-22 23:51:19,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 23:51:19,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 23:51:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:51:19,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 23:51:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-22 23:51:19,879 INFO L87 Difference]: Start difference. First operand 254 states and 415 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) [2023-12-22 23:51:24,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:28,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:30,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:31,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:35,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:38,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:42,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:51:42,478 INFO L93 Difference]: Finished difference Result 542 states and 871 transitions. [2023-12-22 23:51:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 23:51:42,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) Word has length 348 [2023-12-22 23:51:42,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:51:42,500 INFO L225 Difference]: With dead ends: 542 [2023-12-22 23:51:42,500 INFO L226 Difference]: Without dead ends: 405 [2023-12-22 23:51:42,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=402, Unknown=0, NotChecked=0, Total=600 [2023-12-22 23:51:42,501 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 480 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 496 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-12-22 23:51:42,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 484 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 21.7s Time] [2023-12-22 23:51:42,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-12-22 23:51:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 260. [2023-12-22 23:51:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 139 states have (on average 1.3381294964028776) internal successors, (186), 139 states have internal predecessors, (186), 116 states have call successors, (116), 4 states have call predecessors, (116), 4 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-22 23:51:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 418 transitions. [2023-12-22 23:51:42,540 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 418 transitions. Word has length 348 [2023-12-22 23:51:42,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:51:42,540 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 418 transitions. [2023-12-22 23:51:42,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) [2023-12-22 23:51:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 418 transitions. [2023-12-22 23:51:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-22 23:51:42,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:51:42,543 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:51:42,555 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 (5)] Ended with exit code 0 [2023-12-22 23:51:42,747 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 [2023-12-22 23:51:42,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:51:42,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:51:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1981363036, now seen corresponding path program 1 times [2023-12-22 23:51:42,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:51:42,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408108766] [2023-12-22 23:51:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:51:42,756 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 [2023-12-22 23:51:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:51:42,757 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) [2023-12-22 23:51:42,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 23:51:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:51:43,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 23:51:43,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:51:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 2607 proven. 126 refuted. 0 times theorem prover too weak. 3879 trivial. 0 not checked. [2023-12-22 23:51:44,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 23:51:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 45 proven. 126 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2023-12-22 23:51:44,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:51:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408108766] [2023-12-22 23:51:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408108766] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 23:51:44,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 23:51:44,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-22 23:51:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034398613] [2023-12-22 23:51:44,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 23:51:44,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 23:51:44,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:51:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 23:51:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-22 23:51:44,849 INFO L87 Difference]: Start difference. First operand 260 states and 418 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-22 23:51:48,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:48,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:51:48,308 INFO L93 Difference]: Finished difference Result 412 states and 649 transitions. [2023-12-22 23:51:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 23:51:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 349 [2023-12-22 23:51:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:51:48,337 INFO L225 Difference]: With dead ends: 412 [2023-12-22 23:51:48,337 INFO L226 Difference]: Without dead ends: 273 [2023-12-22 23:51:48,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 689 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-22 23:51:48,339 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 220 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 23:51:48,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 389 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 23:51:48,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-22 23:51:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2023-12-22 23:51:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 142 states have (on average 1.2887323943661972) internal successors, (183), 142 states have internal predecessors, (183), 116 states have call successors, (116), 6 states have call predecessors, (116), 6 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-22 23:51:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 415 transitions. [2023-12-22 23:51:48,367 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 415 transitions. Word has length 349 [2023-12-22 23:51:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:51:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 415 transitions. [2023-12-22 23:51:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-22 23:51:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 415 transitions. [2023-12-22 23:51:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-22 23:51:48,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:51:48,370 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:51:48,382 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 (6)] Ended with exit code 0 [2023-12-22 23:51:48,582 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 [2023-12-22 23:51:48,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:51:48,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:51:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2110651292, now seen corresponding path program 1 times [2023-12-22 23:51:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:51:48,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242125626] [2023-12-22 23:51:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:51:48,584 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 [2023-12-22 23:51:48,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:51:48,585 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) [2023-12-22 23:51:48,587 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 [2023-12-22 23:51:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:51:49,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 23:51:49,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:51:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 2607 proven. 126 refuted. 0 times theorem prover too weak. 3879 trivial. 0 not checked. [2023-12-22 23:51:50,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 23:51:51,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 45 proven. 126 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2023-12-22 23:51:51,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:51:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242125626] [2023-12-22 23:51:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242125626] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 23:51:51,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 23:51:51,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-22 23:51:51,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354689050] [2023-12-22 23:51:51,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 23:51:51,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 23:51:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:51:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 23:51:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-22 23:51:51,163 INFO L87 Difference]: Start difference. First operand 265 states and 415 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-22 23:51:54,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:51:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:51:54,797 INFO L93 Difference]: Finished difference Result 413 states and 640 transitions. [2023-12-22 23:51:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 23:51:54,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 349 [2023-12-22 23:51:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:51:54,826 INFO L225 Difference]: With dead ends: 413 [2023-12-22 23:51:54,826 INFO L226 Difference]: Without dead ends: 273 [2023-12-22 23:51:54,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 689 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-22 23:51:54,827 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 270 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-22 23:51:54,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 390 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-22 23:51:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-22 23:51:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2023-12-22 23:51:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 142 states have (on average 1.2816901408450705) internal successors, (182), 142 states have internal predecessors, (182), 116 states have call successors, (116), 6 states have call predecessors, (116), 6 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-22 23:51:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 414 transitions. [2023-12-22 23:51:54,856 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 414 transitions. Word has length 349 [2023-12-22 23:51:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:51:54,857 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 414 transitions. [2023-12-22 23:51:54,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-22 23:51:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 414 transitions. [2023-12-22 23:51:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-22 23:51:54,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:51:54,860 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:51:54,874 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 [2023-12-22 23:51:55,067 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 [2023-12-22 23:51:55,068 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:51:55,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:51:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2053392990, now seen corresponding path program 1 times [2023-12-22 23:51:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:51:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101291627] [2023-12-22 23:51:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:51:55,069 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 [2023-12-22 23:51:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:51:55,071 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) [2023-12-22 23:51:55,072 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 [2023-12-22 23:51:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:51:55,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 23:51:55,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:52:41,941 WARN L293 SmtUtils]: Spent 13.12s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-22 23:54:05,956 WARN L293 SmtUtils]: Spent 11.92s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-22 23:54:27,145 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 23:55:00,695 WARN L293 SmtUtils]: Spent 11.81s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-22 23:56:18,836 WARN L293 SmtUtils]: Spent 18.22s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-22 23:57:44,486 WARN L293 SmtUtils]: Spent 20.39s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)