/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-42.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 04:47:41,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 04:47:41,852 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 04:47:41,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 04:47:41,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 04:47:41,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 04:47:41,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 04:47:41,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 04:47:41,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 04:47:41,889 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 04:47:41,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 04:47:41,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 04:47:41,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 04:47:41,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 04:47:41,890 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 04:47:41,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 04:47:41,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 04:47:41,891 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 04:47:41,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 04:47:41,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 04:47:41,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 04:47:41,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 04:47:41,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 04:47:41,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 04:47:41,899 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 04:47:41,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 04:47:41,899 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 04:47:41,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 04:47:41,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 04:47:41,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 04:47:41,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 04:47:41,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 04:47:41,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 04:47:41,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 04:47:41,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:47:41,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 04:47:41,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 04:47:41,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 04:47:41,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 04:47:41,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 04:47:41,903 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 04:47:41,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 04:47:42,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 04:47:42,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 04:47:42,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 04:47:42,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 04:47:42,113 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 04:47:42,114 INFO L431 ainManager$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-42.i [2023-12-23 04:47:43,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 04:47:43,484 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 04:47:43,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-42.i [2023-12-23 04:47:43,506 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16f7bef56/65e981dcb5cf41bc9a45e3409aa9343b/FLAGbc2b06647 [2023-12-23 04:47:43,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16f7bef56/65e981dcb5cf41bc9a45e3409aa9343b [2023-12-23 04:47:43,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 04:47:43,522 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 04:47:43,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 04:47:43,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 04:47:43,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 04:47:43,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:47:43" (1/1) ... [2023-12-23 04:47:43,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c1de26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:43, skipping insertion in model container [2023-12-23 04:47:43,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:47:43" (1/1) ... [2023-12-23 04:47:43,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 04:47:43,695 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-42.i[916,929] [2023-12-23 04:47:43,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:47:43,855 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 04:47:43,864 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-42.i[916,929] [2023-12-23 04:47:44,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 04:47:44,050 INFO L206 MainTranslator]: Completed translation [2023-12-23 04:47:44,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44 WrapperNode [2023-12-23 04:47:44,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 04:47:44,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 04:47:44,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 04:47:44,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 04:47:44,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,122 INFO L138 Inliner]: procedures = 27, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 694 [2023-12-23 04:47:44,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 04:47:44,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 04:47:44,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 04:47:44,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 04:47:44,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,157 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 04:47:44,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 04:47:44,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 04:47:44,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 04:47:44,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 04:47:44,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (1/1) ... [2023-12-23 04:47:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 04:47:44,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 04:47:44,262 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 04:47:44,283 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 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 04:47:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 04:47:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 04:47:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 04:47:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 04:47:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 04:47:44,461 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 04:47:44,465 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 04:48:45,011 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 04:48:45,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 04:48:45,046 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 04:48:45,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:48:45 BoogieIcfgContainer [2023-12-23 04:48:45,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 04:48:45,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 04:48:45,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 04:48:45,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 04:48:45,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:47:43" (1/3) ... [2023-12-23 04:48:45,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53afb474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:48:45, skipping insertion in model container [2023-12-23 04:48:45,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:47:44" (2/3) ... [2023-12-23 04:48:45,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53afb474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:48:45, skipping insertion in model container [2023-12-23 04:48:45,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:48:45" (3/3) ... [2023-12-23 04:48:45,052 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-42.i [2023-12-23 04:48:45,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 04:48:45,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 04:48:45,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 04:48:45,121 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;@1146f596, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 04:48:45,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 04:48:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 189 states have internal predecessors, (303), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-23 04:48:45,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:48:45,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:48:45,163 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:45,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:48:45,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:48:45,167 INFO L85 PathProgramCache]: Analyzing trace with hash 565785410, now seen corresponding path program 1 times [2023-12-23 04:48:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:48:45,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578746746] [2023-12-23 04:48:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:48:45,180 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 04:48:45,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:48:45,182 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 04:48:45,188 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 04:48:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:48:47,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 04:48:47,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:48:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 6194 proven. 0 refuted. 0 times theorem prover too weak. 16066 trivial. 0 not checked. [2023-12-23 04:48:47,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:48:47,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:48:47,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578746746] [2023-12-23 04:48:47,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578746746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:48:47,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 04:48:47,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 04:48:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143546849] [2023-12-23 04:48:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:48:47,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 04:48:47,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:48:47,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 04:48:47,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 04:48:47,334 INFO L87 Difference]: Start difference. First operand has 297 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 189 states have internal predecessors, (303), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-23 04:48:47,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:48:47,566 INFO L93 Difference]: Finished difference Result 589 states and 1130 transitions. [2023-12-23 04:48:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 04:48:47,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 669 [2023-12-23 04:48:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:48:47,585 INFO L225 Difference]: With dead ends: 589 [2023-12-23 04:48:47,586 INFO L226 Difference]: Without dead ends: 293 [2023-12-23 04:48:47,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 668 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 04:48:47,593 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 04:48:47,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 501 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 04:48:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-23 04:48:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-12-23 04:48:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 185 states have (on average 1.5783783783783785) internal successors, (292), 185 states have internal predecessors, (292), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-23 04:48:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 504 transitions. [2023-12-23 04:48:47,652 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 504 transitions. Word has length 669 [2023-12-23 04:48:47,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:48:47,664 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 504 transitions. [2023-12-23 04:48:47,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-23 04:48:47,664 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 504 transitions. [2023-12-23 04:48:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:48:47,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:48:47,677 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:47,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 04:48:47,892 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 04:48:47,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:48:47,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:48:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash -4211182, now seen corresponding path program 1 times [2023-12-23 04:48:47,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:48:47,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927770205] [2023-12-23 04:48:47,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:48:47,895 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 04:48:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:48:47,896 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 04:48:47,898 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 04:48:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:48:49,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 04:48:49,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:49:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 11424 proven. 435 refuted. 0 times theorem prover too weak. 10401 trivial. 0 not checked. [2023-12-23 04:49:03,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:49:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 189 proven. 438 refuted. 0 times theorem prover too weak. 21633 trivial. 0 not checked. [2023-12-23 04:49:06,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:49:06,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927770205] [2023-12-23 04:49:06,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927770205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:49:06,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:49:06,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-23 04:49:06,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467634530] [2023-12-23 04:49:06,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:49:06,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 04:49:06,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:49:07,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 04:49:07,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-12-23 04:49:07,001 INFO L87 Difference]: Start difference. First operand 293 states and 504 transitions. Second operand has 14 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 5 states have call successors, (185), 3 states have call predecessors, (185), 7 states have return successors, (186), 5 states have call predecessors, (186), 5 states have call successors, (186) [2023-12-23 04:49:17,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:49:21,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:49:24,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:49:24,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:49:24,797 INFO L93 Difference]: Finished difference Result 596 states and 1011 transitions. [2023-12-23 04:49:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 04:49:24,809 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 5 states have call successors, (185), 3 states have call predecessors, (185), 7 states have return successors, (186), 5 states have call predecessors, (186), 5 states have call successors, (186) Word has length 669 [2023-12-23 04:49:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:49:24,812 INFO L225 Difference]: With dead ends: 596 [2023-12-23 04:49:24,812 INFO L226 Difference]: Without dead ends: 304 [2023-12-23 04:49:24,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1325 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=151, Invalid=269, Unknown=0, NotChecked=0, Total=420 [2023-12-23 04:49:24,816 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1172 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 283 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:49:24,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 892 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 608 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2023-12-23 04:49:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-23 04:49:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 296. [2023-12-23 04:49:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 186 states have (on average 1.543010752688172) internal successors, (287), 186 states have internal predecessors, (287), 106 states have call successors, (106), 3 states have call predecessors, (106), 3 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-23 04:49:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 499 transitions. [2023-12-23 04:49:24,872 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 499 transitions. Word has length 669 [2023-12-23 04:49:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:49:24,873 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 499 transitions. [2023-12-23 04:49:24,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 5 states have call successors, (185), 3 states have call predecessors, (185), 7 states have return successors, (186), 5 states have call predecessors, (186), 5 states have call successors, (186) [2023-12-23 04:49:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 499 transitions. [2023-12-23 04:49:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:49:24,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:49:24,879 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:49:24,928 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 (3)] Ended with exit code 0 [2023-12-23 04:49:25,088 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 04:49:25,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:49:25,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:49:25,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1704729708, now seen corresponding path program 1 times [2023-12-23 04:49:25,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:49:25,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535310170] [2023-12-23 04:49:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:49:25,093 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 04:49:25,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:49:25,102 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 04:49:25,128 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 04:49:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:49:26,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:49:26,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:49:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:49:41,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:49:44,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:49:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535310170] [2023-12-23 04:49:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535310170] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:49:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296759169] [2023-12-23 04:49:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:49:44,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:49:44,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:49:44,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:49:44,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 04:49:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:49:45,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:49:45,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:49:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:49:45,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:49:45,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [296759169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:49:45,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:49:45,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:49:45,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378423799] [2023-12-23 04:49:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:49:45,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:49:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:49:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:49:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:49:45,980 INFO L87 Difference]: Start difference. First operand 296 states and 499 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:49:46,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:49:46,471 INFO L93 Difference]: Finished difference Result 881 states and 1485 transitions. [2023-12-23 04:49:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:49:46,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 669 [2023-12-23 04:49:46,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:49:46,484 INFO L225 Difference]: With dead ends: 881 [2023-12-23 04:49:46,484 INFO L226 Difference]: Without dead ends: 586 [2023-12-23 04:49:46,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1756 GetRequests, 1749 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:49:46,486 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 459 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 04:49:46,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1066 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 04:49:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-23 04:49:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 584. [2023-12-23 04:49:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 365 states have (on average 1.5205479452054795) internal successors, (555), 365 states have internal predecessors, (555), 212 states have call successors, (212), 6 states have call predecessors, (212), 6 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2023-12-23 04:49:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 979 transitions. [2023-12-23 04:49:46,540 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 979 transitions. Word has length 669 [2023-12-23 04:49:46,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:49:46,542 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 979 transitions. [2023-12-23 04:49:46,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:49:46,542 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 979 transitions. [2023-12-23 04:49:46,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-23 04:49:46,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:49:46,549 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:49:46,594 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 04:49:46,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-23 04:49:46,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:49:46,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:49:46,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:49:46,983 INFO L85 PathProgramCache]: Analyzing trace with hash 275326164, now seen corresponding path program 1 times [2023-12-23 04:49:46,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:49:46,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127005162] [2023-12-23 04:49:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:49:46,984 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 04:49:46,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:49:46,985 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 04:49:46,986 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 04:49:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:49:48,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:49:48,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:50:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:50:03,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:50:05,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:50:05,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127005162] [2023-12-23 04:50:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127005162] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:50:05,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1219354128] [2023-12-23 04:50:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:50:05,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:50:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:50:05,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:50:05,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 04:50:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:50:07,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:50:07,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:50:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:50:07,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:50:07,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1219354128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:50:07,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:50:07,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:50:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653782947] [2023-12-23 04:50:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:50:07,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:50:07,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:50:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:50:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:50:07,756 INFO L87 Difference]: Start difference. First operand 584 states and 979 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:50:08,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:50:08,883 INFO L93 Difference]: Finished difference Result 1202 states and 2022 transitions. [2023-12-23 04:50:08,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:50:08,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 669 [2023-12-23 04:50:08,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:50:08,888 INFO L225 Difference]: With dead ends: 1202 [2023-12-23 04:50:08,888 INFO L226 Difference]: Without dead ends: 619 [2023-12-23 04:50:08,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1756 GetRequests, 1749 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:50:08,891 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 449 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-23 04:50:08,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1373 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-23 04:50:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-23 04:50:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 617. [2023-12-23 04:50:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 398 states have (on average 1.5376884422110553) internal successors, (612), 398 states have internal predecessors, (612), 212 states have call successors, (212), 6 states have call predecessors, (212), 6 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2023-12-23 04:50:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1036 transitions. [2023-12-23 04:50:08,926 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1036 transitions. Word has length 669 [2023-12-23 04:50:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:50:08,928 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 1036 transitions. [2023-12-23 04:50:08,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:50:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1036 transitions. [2023-12-23 04:50:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:50:08,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:50:08,935 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:08,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 04:50:09,186 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 [2023-12-23 04:50:09,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:50:09,344 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:50:09,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:50:09,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1106785170, now seen corresponding path program 1 times [2023-12-23 04:50:09,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:50:09,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218154713] [2023-12-23 04:50:09,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:50:09,345 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 04:50:09,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:50:09,346 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 04:50:09,347 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 04:50:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:50:11,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:50:11,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:50:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 6405 proven. 261 refuted. 0 times theorem prover too weak. 15594 trivial. 0 not checked. [2023-12-23 04:50:19,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:50:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 54 proven. 261 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2023-12-23 04:50:23,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:50:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218154713] [2023-12-23 04:50:23,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218154713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 04:50:23,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 04:50:23,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 04:50:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645737302] [2023-12-23 04:50:23,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 04:50:23,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 04:50:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:50:23,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 04:50:23,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:50:23,424 INFO L87 Difference]: Start difference. First operand 617 states and 1036 transitions. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 2 states have call successors, (193), 2 states have call predecessors, (193), 4 states have return successors, (194), 2 states have call predecessors, (194), 2 states have call successors, (194) [2023-12-23 04:50:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:50:35,562 INFO L93 Difference]: Finished difference Result 1255 states and 2090 transitions. [2023-12-23 04:50:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-23 04:50:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 2 states have call successors, (193), 2 states have call predecessors, (193), 4 states have return successors, (194), 2 states have call predecessors, (194), 2 states have call successors, (194) Word has length 670 [2023-12-23 04:50:35,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:50:35,567 INFO L225 Difference]: With dead ends: 1255 [2023-12-23 04:50:35,567 INFO L226 Difference]: Without dead ends: 639 [2023-12-23 04:50:35,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1349 GetRequests, 1331 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 04:50:35,570 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 1484 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-23 04:50:35,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1872 Invalid, 1647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [321 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-12-23 04:50:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-23 04:50:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 592. [2023-12-23 04:50:35,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 371 states have (on average 1.482479784366577) internal successors, (550), 371 states have internal predecessors, (550), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2023-12-23 04:50:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 974 transitions. [2023-12-23 04:50:35,623 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 974 transitions. Word has length 670 [2023-12-23 04:50:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:50:35,624 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 974 transitions. [2023-12-23 04:50:35,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 2 states have call successors, (193), 2 states have call predecessors, (193), 4 states have return successors, (194), 2 states have call predecessors, (194), 2 states have call successors, (194) [2023-12-23 04:50:35,624 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 974 transitions. [2023-12-23 04:50:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:50:35,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:50:35,629 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:35,684 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 04:50:35,852 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 04:50:35,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:50:35,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:50:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash -438064676, now seen corresponding path program 1 times [2023-12-23 04:50:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:50:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744052021] [2023-12-23 04:50:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:50:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:50:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:50:35,856 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 04:50:35,889 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 04:50:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:50:37,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:50:37,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:50:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:50:52,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:50:55,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:50:55,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744052021] [2023-12-23 04:50:55,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744052021] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:50:55,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1282922109] [2023-12-23 04:50:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:50:55,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:50:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:50:55,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:50:55,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-23 04:50:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:50:56,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:50:56,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:50:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:50:57,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:50:57,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1282922109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:50:57,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:50:57,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:50:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598677850] [2023-12-23 04:50:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:50:57,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:50:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:50:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:50:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:50:57,066 INFO L87 Difference]: Start difference. First operand 592 states and 974 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:50:57,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:50:57,499 INFO L93 Difference]: Finished difference Result 1543 states and 2506 transitions. [2023-12-23 04:50:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:50:57,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 670 [2023-12-23 04:50:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:50:57,505 INFO L225 Difference]: With dead ends: 1543 [2023-12-23 04:50:57,505 INFO L226 Difference]: Without dead ends: 952 [2023-12-23 04:50:57,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1759 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:50:57,510 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 262 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:50:57,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 964 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 04:50:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2023-12-23 04:50:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2023-12-23 04:50:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 555 states have (on average 1.3945945945945946) internal successors, (774), 557 states have internal predecessors, (774), 376 states have call successors, (376), 16 states have call predecessors, (376), 16 states have return successors, (376), 374 states have call predecessors, (376), 376 states have call successors, (376) [2023-12-23 04:50:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1526 transitions. [2023-12-23 04:50:57,621 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1526 transitions. Word has length 670 [2023-12-23 04:50:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:50:57,622 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1526 transitions. [2023-12-23 04:50:57,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:50:57,623 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1526 transitions. [2023-12-23 04:50:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:50:57,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:50:57,627 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:57,675 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 04:50:57,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-23 04:50:58,047 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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:50:58,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:50:58,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:50:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash 130490268, now seen corresponding path program 1 times [2023-12-23 04:50:58,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:50:58,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897254736] [2023-12-23 04:50:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:50:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:50:58,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:50:58,059 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 04:50:58,096 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 (11)] Waiting until timeout for monitored process [2023-12-23 04:50:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:50:59,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:50:59,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:51:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:51:14,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:51:16,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:51:16,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897254736] [2023-12-23 04:51:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897254736] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:51:16,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1895194829] [2023-12-23 04:51:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:51:16,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:51:16,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:51:16,977 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:51:16,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-23 04:51:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:51:18,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:51:18,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:51:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:51:18,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:51:18,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1895194829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:51:18,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:51:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:51:18,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569365105] [2023-12-23 04:51:18,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:51:18,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:51:18,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:51:18,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:51:18,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:51:18,621 INFO L87 Difference]: Start difference. First operand 948 states and 1526 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:51:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:51:19,052 INFO L93 Difference]: Finished difference Result 2619 states and 4180 transitions. [2023-12-23 04:51:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:51:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 670 [2023-12-23 04:51:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:51:19,066 INFO L225 Difference]: With dead ends: 2619 [2023-12-23 04:51:19,066 INFO L226 Difference]: Without dead ends: 1672 [2023-12-23 04:51:19,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1759 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:51:19,072 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 283 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:51:19,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1198 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 04:51:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2023-12-23 04:51:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1668. [2023-12-23 04:51:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 915 states have (on average 1.3202185792349728) internal successors, (1208), 921 states have internal predecessors, (1208), 720 states have call successors, (720), 32 states have call predecessors, (720), 32 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2023-12-23 04:51:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2648 transitions. [2023-12-23 04:51:19,231 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2648 transitions. Word has length 670 [2023-12-23 04:51:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:51:19,232 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2648 transitions. [2023-12-23 04:51:19,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:51:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2648 transitions. [2023-12-23 04:51:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:51:19,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:51:19,237 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:19,280 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 04:51:19,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-23 04:51:19,664 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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:51:19,664 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:51:19,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:51:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash 264503774, now seen corresponding path program 1 times [2023-12-23 04:51:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:51:19,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960778959] [2023-12-23 04:51:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:51:19,666 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 04:51:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:51:19,667 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 04:51:19,668 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 04:51:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:51:21,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:51:21,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:51:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:51:36,278 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:51:38,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:51:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960778959] [2023-12-23 04:51:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960778959] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:51:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1831259636] [2023-12-23 04:51:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:51:38,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:51:38,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:51:38,555 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:51:38,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-23 04:51:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:51:39,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:51:39,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:51:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:51:40,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:51:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1831259636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:51:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:51:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:51:40,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872225446] [2023-12-23 04:51:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:51:40,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:51:40,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:51:40,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:51:40,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:51:40,078 INFO L87 Difference]: Start difference. First operand 1668 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:51:40,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:51:40,421 INFO L93 Difference]: Finished difference Result 3427 states and 5458 transitions. [2023-12-23 04:51:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:51:40,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 670 [2023-12-23 04:51:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:51:40,433 INFO L225 Difference]: With dead ends: 3427 [2023-12-23 04:51:40,433 INFO L226 Difference]: Without dead ends: 2592 [2023-12-23 04:51:40,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1759 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:51:40,437 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 486 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 04:51:40,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 971 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 04:51:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2023-12-23 04:51:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 1668. [2023-12-23 04:51:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 915 states have (on average 1.3158469945355191) internal successors, (1204), 921 states have internal predecessors, (1204), 720 states have call successors, (720), 32 states have call predecessors, (720), 32 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2023-12-23 04:51:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2644 transitions. [2023-12-23 04:51:40,624 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2644 transitions. Word has length 670 [2023-12-23 04:51:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:51:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2644 transitions. [2023-12-23 04:51:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:51:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2644 transitions. [2023-12-23 04:51:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:51:40,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:51:40,630 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:40,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-23 04:51:40,882 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 (13)] Forceful destruction successful, exit code 0 [2023-12-23 04:51:41,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /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 04:51:41,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:51:41,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:51:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 687205600, now seen corresponding path program 1 times [2023-12-23 04:51:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:51:41,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108309951] [2023-12-23 04:51:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:51:41,058 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 04:51:41,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:51:41,060 INFO L229 MonitoredProcess]: Starting monitored process 15 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 04:51:41,077 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 (15)] Waiting until timeout for monitored process [2023-12-23 04:51:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:51:42,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:51:42,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:51:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:51:57,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:51:59,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:51:59,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108309951] [2023-12-23 04:51:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108309951] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:51:59,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1638991587] [2023-12-23 04:51:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:51:59,527 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:51:59,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:51:59,528 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:51:59,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-23 04:52:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:52:00,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 04:52:00,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:52:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:52:01,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:52:01,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1638991587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:52:01,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:52:01,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:52:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856936459] [2023-12-23 04:52:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:52:01,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 04:52:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:52:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 04:52:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:52:01,637 INFO L87 Difference]: Start difference. First operand 1668 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:52:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:52:02,377 INFO L93 Difference]: Finished difference Result 3958 states and 6296 transitions. [2023-12-23 04:52:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 04:52:02,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 670 [2023-12-23 04:52:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:52:02,387 INFO L225 Difference]: With dead ends: 3958 [2023-12-23 04:52:02,387 INFO L226 Difference]: Without dead ends: 2291 [2023-12-23 04:52:02,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1759 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-23 04:52:02,394 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 197 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:52:02,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 958 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 04:52:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-12-23 04:52:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2281. [2023-12-23 04:52:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1408 states have (on average 1.3977272727272727) internal successors, (1968), 1422 states have internal predecessors, (1968), 832 states have call successors, (832), 40 states have call predecessors, (832), 40 states have return successors, (832), 818 states have call predecessors, (832), 832 states have call successors, (832) [2023-12-23 04:52:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3632 transitions. [2023-12-23 04:52:02,593 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3632 transitions. Word has length 670 [2023-12-23 04:52:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:52:02,594 INFO L495 AbstractCegarLoop]: Abstraction has 2281 states and 3632 transitions. [2023-12-23 04:52:02,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:52:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3632 transitions. [2023-12-23 04:52:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-23 04:52:02,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:52:02,599 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:02,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-23 04:52:02,852 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 (15)] Forceful destruction successful, exit code 0 [2023-12-23 04:52:03,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,15 /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 04:52:03,008 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:52:03,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:52:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2019413794, now seen corresponding path program 1 times [2023-12-23 04:52:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:52:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228727792] [2023-12-23 04:52:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:52:03,009 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 04:52:03,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:52:03,010 INFO L229 MonitoredProcess]: Starting monitored process 17 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 04:52:03,016 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 (17)] Waiting until timeout for monitored process [2023-12-23 04:52:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:52:04,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:52:04,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:52:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:52:19,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:52:21,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:52:21,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228727792] [2023-12-23 04:52:21,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228727792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:52:21,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [869695268] [2023-12-23 04:52:21,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:52:21,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:52:21,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:52:21,775 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:52:21,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-23 04:52:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:52:23,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 04:52:23,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:52:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:52:32,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:52:32,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [869695268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:52:32,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:52:32,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 04:52:32,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87815849] [2023-12-23 04:52:32,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:52:32,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 04:52:32,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:52:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 04:52:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-23 04:52:32,822 INFO L87 Difference]: Start difference. First operand 2281 states and 3632 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:52:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:52:33,832 INFO L93 Difference]: Finished difference Result 5586 states and 8946 transitions. [2023-12-23 04:52:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 04:52:33,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 670 [2023-12-23 04:52:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:52:33,858 INFO L225 Difference]: With dead ends: 5586 [2023-12-23 04:52:33,858 INFO L226 Difference]: Without dead ends: 3306 [2023-12-23 04:52:33,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1760 GetRequests, 1751 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:52:33,866 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 418 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 04:52:33,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1458 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 04:52:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2023-12-23 04:52:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3016. [2023-12-23 04:52:34,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3016 states, 2031 states have (on average 1.4564254062038404) internal successors, (2958), 2045 states have internal predecessors, (2958), 938 states have call successors, (938), 46 states have call predecessors, (938), 46 states have return successors, (938), 924 states have call predecessors, (938), 938 states have call successors, (938) [2023-12-23 04:52:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 4834 transitions. [2023-12-23 04:52:34,130 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 4834 transitions. Word has length 670 [2023-12-23 04:52:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:52:34,131 INFO L495 AbstractCegarLoop]: Abstraction has 3016 states and 4834 transitions. [2023-12-23 04:52:34,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:52:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 4834 transitions. [2023-12-23 04:52:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-12-23 04:52:34,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:52:34,137 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:34,179 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 (17)] Forceful destruction successful, exit code 0 [2023-12-23 04:52:34,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-23 04:52:34,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 04:52:34,557 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:52:34,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:52:34,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1655249504, now seen corresponding path program 1 times [2023-12-23 04:52:34,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:52:34,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228993085] [2023-12-23 04:52:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:52:34,558 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 04:52:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:52:34,559 INFO L229 MonitoredProcess]: Starting monitored process 19 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 04:52:34,560 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 (19)] Waiting until timeout for monitored process [2023-12-23 04:52:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:52:36,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:52:36,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:52:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:52:51,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:52:53,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:52:53,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228993085] [2023-12-23 04:52:53,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228993085] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:52:53,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2110214118] [2023-12-23 04:52:53,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:52:53,579 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:52:53,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:52:53,580 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:52:53,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-23 04:52:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:52:58,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:52:58,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:53:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:53:17,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:53:17,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2110214118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:53:17,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:53:17,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-23 04:53:17,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562181730] [2023-12-23 04:53:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:53:17,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 04:53:17,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:53:17,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 04:53:17,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:53:17,343 INFO L87 Difference]: Start difference. First operand 3016 states and 4834 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:53:29,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:53:37,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 04:53:42,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:53:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:53:46,377 INFO L93 Difference]: Finished difference Result 12358 states and 19630 transitions. [2023-12-23 04:53:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 04:53:46,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 671 [2023-12-23 04:53:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:53:46,428 INFO L225 Difference]: With dead ends: 12358 [2023-12-23 04:53:46,428 INFO L226 Difference]: Without dead ends: 9756 [2023-12-23 04:53:46,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1763 GetRequests, 1753 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-23 04:53:46,436 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 745 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 182 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:53:46,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1699 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 640 Invalid, 2 Unknown, 0 Unchecked, 28.4s Time] [2023-12-23 04:53:46,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2023-12-23 04:53:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 7902. [2023-12-23 04:53:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7902 states, 5533 states have (on average 1.4755105729260798) internal successors, (8164), 5577 states have internal predecessors, (8164), 2242 states have call successors, (2242), 126 states have call predecessors, (2242), 126 states have return successors, (2242), 2198 states have call predecessors, (2242), 2242 states have call successors, (2242) [2023-12-23 04:53:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7902 states to 7902 states and 12648 transitions. [2023-12-23 04:53:47,070 INFO L78 Accepts]: Start accepts. Automaton has 7902 states and 12648 transitions. Word has length 671 [2023-12-23 04:53:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:53:47,070 INFO L495 AbstractCegarLoop]: Abstraction has 7902 states and 12648 transitions. [2023-12-23 04:53:47,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:53:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7902 states and 12648 transitions. [2023-12-23 04:53:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-12-23 04:53:47,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:53:47,078 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:47,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-12-23 04:53:47,345 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 (19)] Forceful destruction successful, exit code 0 [2023-12-23 04:53:47,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,19 /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 04:53:47,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:53:47,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:53:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash -761763166, now seen corresponding path program 1 times [2023-12-23 04:53:47,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:53:47,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710277520] [2023-12-23 04:53:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:53:47,504 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 04:53:47,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:53:47,513 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:53:47,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-23 04:53:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:53:49,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:53:49,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:54:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:54:04,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:54:06,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:54:06,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710277520] [2023-12-23 04:54:06,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710277520] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:54:06,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1112622724] [2023-12-23 04:54:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:54:06,397 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:54:06,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:54:06,398 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:54:06,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-23 04:54:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:54:10,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 04:54:10,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:54:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:54:20,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:54:20,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1112622724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:54:20,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:54:20,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-23 04:54:20,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321988944] [2023-12-23 04:54:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:54:20,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 04:54:20,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:54:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 04:54:20,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:54:20,429 INFO L87 Difference]: Start difference. First operand 7902 states and 12648 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:54:25,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 04:54:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:54:31,861 INFO L93 Difference]: Finished difference Result 41204 states and 65389 transitions. [2023-12-23 04:54:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 04:54:31,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 671 [2023-12-23 04:54:31,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:54:31,961 INFO L225 Difference]: With dead ends: 41204 [2023-12-23 04:54:31,962 INFO L226 Difference]: Without dead ends: 33776 [2023-12-23 04:54:31,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1763 GetRequests, 1753 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-23 04:54:31,990 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1473 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-23 04:54:31,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1765 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-12-23 04:54:32,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33776 states. [2023-12-23 04:54:34,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33776 to 33720. [2023-12-23 04:54:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33720 states, 24341 states have (on average 1.4734809580543116) internal successors, (35866), 24569 states have internal predecessors, (35866), 8770 states have call successors, (8770), 608 states have call predecessors, (8770), 608 states have return successors, (8770), 8542 states have call predecessors, (8770), 8770 states have call successors, (8770) [2023-12-23 04:54:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33720 states to 33720 states and 53406 transitions. [2023-12-23 04:54:34,729 INFO L78 Accepts]: Start accepts. Automaton has 33720 states and 53406 transitions. Word has length 671 [2023-12-23 04:54:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:54:34,730 INFO L495 AbstractCegarLoop]: Abstraction has 33720 states and 53406 transitions. [2023-12-23 04:54:34,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:54:34,730 INFO L276 IsEmpty]: Start isEmpty. Operand 33720 states and 53406 transitions. [2023-12-23 04:54:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-12-23 04:54:34,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:54:34,750 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:54:34,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-23 04:54:35,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-23 04:54:35,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:54:35,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:54:35,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:54:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash -82490912, now seen corresponding path program 1 times [2023-12-23 04:54:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:54:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200746098] [2023-12-23 04:54:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:54:35,166 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 04:54:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:54:35,167 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:54:35,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-23 04:54:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:54:36,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:54:36,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:54:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:54:51,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:54:53,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:54:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200746098] [2023-12-23 04:54:53,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200746098] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:54:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1333281548] [2023-12-23 04:54:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:54:53,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:54:53,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:54:53,840 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:54:53,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-23 04:54:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:54:58,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 04:54:58,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:55:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:55:17,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:55:17,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1333281548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:55:17,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:55:17,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-23 04:55:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225941535] [2023-12-23 04:55:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:55:17,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 04:55:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:55:17,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 04:55:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:55:17,491 INFO L87 Difference]: Start difference. First operand 33720 states and 53406 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:55:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:55:24,551 INFO L93 Difference]: Finished difference Result 92270 states and 145629 transitions. [2023-12-23 04:55:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 04:55:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 671 [2023-12-23 04:55:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:55:24,794 INFO L225 Difference]: With dead ends: 92270 [2023-12-23 04:55:24,794 INFO L226 Difference]: Without dead ends: 64796 [2023-12-23 04:55:24,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1753 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-12-23 04:55:24,881 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 448 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-23 04:55:24,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1738 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-23 04:55:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64796 states. [2023-12-23 04:55:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64796 to 61192. [2023-12-23 04:55:30,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61192 states, 42549 states have (on average 1.4488707137653059) internal successors, (61648), 43005 states have internal predecessors, (61648), 17434 states have call successors, (17434), 1208 states have call predecessors, (17434), 1208 states have return successors, (17434), 16978 states have call predecessors, (17434), 17434 states have call successors, (17434) [2023-12-23 04:55:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61192 states to 61192 states and 96516 transitions. [2023-12-23 04:55:30,298 INFO L78 Accepts]: Start accepts. Automaton has 61192 states and 96516 transitions. Word has length 671 [2023-12-23 04:55:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:55:30,299 INFO L495 AbstractCegarLoop]: Abstraction has 61192 states and 96516 transitions. [2023-12-23 04:55:30,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:55:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 61192 states and 96516 transitions. [2023-12-23 04:55:30,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-12-23 04:55:30,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:55:30,328 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:30,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-12-23 04:55:30,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-23 04:55:30,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:55:30,745 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:55:30,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:55:30,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1093608162, now seen corresponding path program 1 times [2023-12-23 04:55:30,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:55:30,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462813247] [2023-12-23 04:55:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:55:30,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:55:30,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:55:30,749 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:55:30,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-23 04:55:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:55:32,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:55:32,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:55:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:55:47,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:55:49,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:55:49,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462813247] [2023-12-23 04:55:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462813247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:55:49,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1535923639] [2023-12-23 04:55:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:55:49,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:55:49,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:55:49,983 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:55:49,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-23 04:55:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:55:53,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:55:53,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:56:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:56:04,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:56:04,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1535923639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:56:04,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:56:04,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-23 04:56:04,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104533071] [2023-12-23 04:56:04,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:56:04,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 04:56:04,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:56:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 04:56:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 04:56:04,713 INFO L87 Difference]: Start difference. First operand 61192 states and 96516 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:56:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:56:28,854 INFO L93 Difference]: Finished difference Result 157538 states and 246731 transitions. [2023-12-23 04:56:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 04:56:28,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 671 [2023-12-23 04:56:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:56:29,282 INFO L225 Difference]: With dead ends: 157538 [2023-12-23 04:56:29,283 INFO L226 Difference]: Without dead ends: 130064 [2023-12-23 04:56:29,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1766 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-12-23 04:56:29,389 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 482 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-23 04:56:29,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 2054 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-12-23 04:56:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130064 states. [2023-12-23 04:56:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130064 to 121176. [2023-12-23 04:56:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121176 states, 83285 states have (on average 1.4342558684036741) internal successors, (119452), 84437 states have internal predecessors, (119452), 35242 states have call successors, (35242), 2648 states have call predecessors, (35242), 2648 states have return successors, (35242), 34090 states have call predecessors, (35242), 35242 states have call successors, (35242) [2023-12-23 04:56:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121176 states to 121176 states and 189936 transitions. [2023-12-23 04:56:42,218 INFO L78 Accepts]: Start accepts. Automaton has 121176 states and 189936 transitions. Word has length 671 [2023-12-23 04:56:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 04:56:42,219 INFO L495 AbstractCegarLoop]: Abstraction has 121176 states and 189936 transitions. [2023-12-23 04:56:42,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:56:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 121176 states and 189936 transitions. [2023-12-23 04:56:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-12-23 04:56:42,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 04:56:42,247 INFO L195 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:42,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-23 04:56:42,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-23 04:56:42,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 04:56:42,656 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 04:56:42,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 04:56:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash -835442724, now seen corresponding path program 1 times [2023-12-23 04:56:42,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 04:56:42,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416434842] [2023-12-23 04:56:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:56:42,659 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 04:56:42,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 04:56:42,660 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 04:56:42,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-23 04:56:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:56:44,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:56:44,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:56:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 10929 proven. 183 refuted. 0 times theorem prover too weak. 11148 trivial. 0 not checked. [2023-12-23 04:56:59,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 04:57:01,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 04:57:01,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416434842] [2023-12-23 04:57:01,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416434842] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 04:57:01,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [136199460] [2023-12-23 04:57:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 04:57:01,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 04:57:01,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 04:57:01,960 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 04:57:01,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-23 04:57:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 04:57:05,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 04:57:05,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 04:57:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2023-12-23 04:57:25,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 04:57:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [136199460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 04:57:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 04:57:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-23 04:57:25,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613700178] [2023-12-23 04:57:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 04:57:25,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 04:57:25,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 04:57:25,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 04:57:25,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-23 04:57:25,761 INFO L87 Difference]: Start difference. First operand 121176 states and 189936 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-23 04:57:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 04:57:51,098 INFO L93 Difference]: Finished difference Result 209358 states and 328389 transitions. [2023-12-23 04:57:51,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 04:57:51,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 671 [2023-12-23 04:57:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 04:57:51,866 INFO L225 Difference]: With dead ends: 209358 [2023-12-23 04:57:51,866 INFO L226 Difference]: Without dead ends: 154412 [2023-12-23 04:57:52,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1753 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-12-23 04:57:52,046 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 434 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-23 04:57:52,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1755 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-12-23 04:57:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154412 states.