/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-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 05:41:18,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 05:41:18,823 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 05:41:18,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 05:41:18,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 05:41:18,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 05:41:18,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 05:41:18,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 05:41:18,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 05:41:18,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 05:41:18,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 05:41:18,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 05:41:18,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 05:41:18,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 05:41:18,854 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 05:41:18,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 05:41:18,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 05:41:18,855 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 05:41:18,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 05:41:18,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 05:41:18,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 05:41:18,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 05:41:18,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 05:41:18,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 05:41:18,857 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 05:41:18,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 05:41:18,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 05:41:18,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:41:18,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 05:41:18,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 05:41:18,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 05:41:18,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 05:41:18,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 05:41:18,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 05:41:18,861 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 05:41:18,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 05:41:19,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 05:41:19,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 05:41:19,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 05:41:19,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 05:41:19,077 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 05:41:19,079 INFO L431 ainManager$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-97.i [2023-12-23 05:41:20,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 05:41:20,367 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 05:41:20,367 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i [2023-12-23 05:41:20,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa8426952/9fb7162c7a484f30879c7a02d5b0f9ef/FLAGfbc1faade [2023-12-23 05:41:20,391 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa8426952/9fb7162c7a484f30879c7a02d5b0f9ef [2023-12-23 05:41:20,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 05:41:20,394 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 05:41:20,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 05:41:20,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 05:41:20,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 05:41:20,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d54118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20, skipping insertion in model container [2023-12-23 05:41:20,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 05:41:20,564 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-97.i[916,929] [2023-12-23 05:41:20,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:41:20,700 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 05:41:20,708 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-97.i[916,929] [2023-12-23 05:41:20,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:41:20,800 INFO L206 MainTranslator]: Completed translation [2023-12-23 05:41:20,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20 WrapperNode [2023-12-23 05:41:20,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 05:41:20,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 05:41:20,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 05:41:20,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 05:41:20,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,874 INFO L138 Inliner]: procedures = 27, calls = 110, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 655 [2023-12-23 05:41:20,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 05:41:20,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 05:41:20,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 05:41:20,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 05:41:20,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,932 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 05:41:20,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 05:41:20,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 05:41:20,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 05:41:20,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 05:41:20,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (1/1) ... [2023-12-23 05:41:20,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:41:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 05:41:21,014 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 05:41:21,033 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 05:41:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 05:41:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 05:41:21,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 05:41:21,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 05:41:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 05:41:21,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 05:41:21,192 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 05:41:21,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 05:42:02,144 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 05:42:02,178 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 05:42:02,179 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 05:42:02,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:42:02 BoogieIcfgContainer [2023-12-23 05:42:02,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 05:42:02,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 05:42:02,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 05:42:02,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 05:42:02,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:41:20" (1/3) ... [2023-12-23 05:42:02,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223e98ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:42:02, skipping insertion in model container [2023-12-23 05:42:02,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:41:20" (2/3) ... [2023-12-23 05:42:02,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223e98ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:42:02, skipping insertion in model container [2023-12-23 05:42:02,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:42:02" (3/3) ... [2023-12-23 05:42:02,184 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-97.i [2023-12-23 05:42:02,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 05:42:02,195 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 05:42:02,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 05:42:02,253 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;@3962b762, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 05:42:02,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 05:42:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 171 states have (on average 1.5964912280701755) internal successors, (273), 172 states have internal predecessors, (273), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-23 05:42:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2023-12-23 05:42:02,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:42:02,281 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:02,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:42:02,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:42:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash 813235674, now seen corresponding path program 1 times [2023-12-23 05:42:02,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:42:02,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977333579] [2023-12-23 05:42:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:42:02,298 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 05:42:02,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:42:02,301 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 05:42:02,307 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 05:42:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:42:04,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 05:42:04,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:42:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 3008 proven. 0 refuted. 0 times theorem prover too weak. 15616 trivial. 0 not checked. [2023-12-23 05:42:04,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:42:04,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:42:04,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977333579] [2023-12-23 05:42:04,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977333579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:42:04,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:42:04,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:42:04,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872400551] [2023-12-23 05:42:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:42:04,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 05:42:04,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:42:04,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 05:42:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:42:04,260 INFO L87 Difference]: Start difference. First operand has 271 states, 171 states have (on average 1.5964912280701755) internal successors, (273), 172 states have internal predecessors, (273), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2023-12-23 05:42:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:42:04,335 INFO L93 Difference]: Finished difference Result 538 states and 1027 transitions. [2023-12-23 05:42:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 05:42:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) Word has length 616 [2023-12-23 05:42:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:42:04,346 INFO L225 Difference]: With dead ends: 538 [2023-12-23 05:42:04,347 INFO L226 Difference]: Without dead ends: 268 [2023-12-23 05:42:04,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 615 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 05:42:04,353 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-23 05:42:04,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-23 05:42:04,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-12-23 05:42:04,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2023-12-23 05:42:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 169 states have (on average 1.5502958579881656) internal successors, (262), 169 states have internal predecessors, (262), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-23 05:42:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 456 transitions. [2023-12-23 05:42:04,405 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 456 transitions. Word has length 616 [2023-12-23 05:42:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:42:04,406 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 456 transitions. [2023-12-23 05:42:04,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2023-12-23 05:42:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 456 transitions. [2023-12-23 05:42:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2023-12-23 05:42:04,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:42:04,422 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:04,473 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 05:42:04,636 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 05:42:04,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:42:04,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:42:04,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1447646472, now seen corresponding path program 1 times [2023-12-23 05:42:04,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:42:04,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949250347] [2023-12-23 05:42:04,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:42:04,639 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 05:42:04,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:42:04,643 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 05:42:04,644 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 05:42:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:42:06,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:42:06,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:42:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:42:06,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:42:06,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:42:06,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949250347] [2023-12-23 05:42:06,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949250347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:42:06,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:42:06,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:42:06,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159483789] [2023-12-23 05:42:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:42:06,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:42:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:42:06,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:42:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:42:06,461 INFO L87 Difference]: Start difference. First operand 268 states and 456 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:42:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:42:06,606 INFO L93 Difference]: Finished difference Result 669 states and 1148 transitions. [2023-12-23 05:42:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:42:06,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 617 [2023-12-23 05:42:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:42:06,612 INFO L225 Difference]: With dead ends: 669 [2023-12-23 05:42:06,612 INFO L226 Difference]: Without dead ends: 402 [2023-12-23 05:42:06,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:42:06,614 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 237 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:42:06,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 935 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:42:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-23 05:42:06,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2023-12-23 05:42:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 283 states have (on average 1.6360424028268552) internal successors, (463), 284 states have internal predecessors, (463), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-23 05:42:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 689 transitions. [2023-12-23 05:42:06,684 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 689 transitions. Word has length 617 [2023-12-23 05:42:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:42:06,685 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 689 transitions. [2023-12-23 05:42:06,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:42:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 689 transitions. [2023-12-23 05:42:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2023-12-23 05:42:06,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:42:06,690 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:06,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 05:42:06,906 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 05:42:06,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:42:06,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:42:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1830839432, now seen corresponding path program 1 times [2023-12-23 05:42:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:42:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629710896] [2023-12-23 05:42:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:42:06,909 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 05:42:06,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:42:06,910 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 05:42:06,938 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 05:42:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:42:08,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:42:08,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:42:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 9298 proven. 159 refuted. 0 times theorem prover too weak. 9167 trivial. 0 not checked. [2023-12-23 05:42:10,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:42:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 129 proven. 159 refuted. 0 times theorem prover too weak. 18336 trivial. 0 not checked. [2023-12-23 05:42:11,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:42:11,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629710896] [2023-12-23 05:42:11,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629710896] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:42:11,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:42:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:42:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44762969] [2023-12-23 05:42:11,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:42:11,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:42:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:42:11,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:42:11,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:42:11,166 INFO L87 Difference]: Start difference. First operand 399 states and 689 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 2 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) [2023-12-23 05:42:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:42:12,828 INFO L93 Difference]: Finished difference Result 805 states and 1382 transitions. [2023-12-23 05:42:12,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:42:12,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 2 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) Word has length 618 [2023-12-23 05:42:12,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:42:12,835 INFO L225 Difference]: With dead ends: 805 [2023-12-23 05:42:12,835 INFO L226 Difference]: Without dead ends: 407 [2023-12-23 05:42:12,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1228 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:42:12,837 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 255 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-23 05:42:12,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 833 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-23 05:42:12,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-23 05:42:12,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2023-12-23 05:42:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 284 states have (on average 1.5985915492957747) internal successors, (454), 285 states have internal predecessors, (454), 113 states have call successors, (113), 3 states have call predecessors, (113), 3 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-23 05:42:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 680 transitions. [2023-12-23 05:42:12,859 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 680 transitions. Word has length 618 [2023-12-23 05:42:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:42:12,860 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 680 transitions. [2023-12-23 05:42:12,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 2 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (151), 2 states have call predecessors, (151), 2 states have call successors, (151) [2023-12-23 05:42:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 680 transitions. [2023-12-23 05:42:12,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2023-12-23 05:42:12,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:42:12,864 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:12,913 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 05:42:13,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:42:13,085 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:42:13,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:42:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash -17104582, now seen corresponding path program 1 times [2023-12-23 05:42:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:42:13,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880761737] [2023-12-23 05:42:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:42:13,087 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 05:42:13,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:42:13,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:42:13,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 05:42:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:42:14,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 05:42:14,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:42:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 9886 proven. 471 refuted. 0 times theorem prover too weak. 8267 trivial. 0 not checked. [2023-12-23 05:42:19,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:42:21,487 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 375 proven. 480 refuted. 0 times theorem prover too weak. 17769 trivial. 0 not checked. [2023-12-23 05:42:21,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:42:21,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880761737] [2023-12-23 05:42:21,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880761737] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:42:21,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:42:21,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2023-12-23 05:42:21,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945404194] [2023-12-23 05:42:21,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:42:21,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-23 05:42:21,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:42:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-23 05:42:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-12-23 05:42:21,495 INFO L87 Difference]: Start difference. First operand 401 states and 680 transitions. Second operand has 18 states, 18 states have (on average 9.055555555555555) internal successors, (163), 18 states have internal predecessors, (163), 4 states have call successors, (153), 4 states have call predecessors, (153), 10 states have return successors, (154), 4 states have call predecessors, (154), 4 states have call successors, (154) [2023-12-23 05:42:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:42:28,553 INFO L93 Difference]: Finished difference Result 1314 states and 2189 transitions. [2023-12-23 05:42:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-23 05:42:28,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.055555555555555) internal successors, (163), 18 states have internal predecessors, (163), 4 states have call successors, (153), 4 states have call predecessors, (153), 10 states have return successors, (154), 4 states have call predecessors, (154), 4 states have call successors, (154) Word has length 618 [2023-12-23 05:42:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:42:28,559 INFO L225 Difference]: With dead ends: 1314 [2023-12-23 05:42:28,559 INFO L226 Difference]: Without dead ends: 914 [2023-12-23 05:42:28,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 1221 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2023-12-23 05:42:28,562 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 2257 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-23 05:42:28,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 1804 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-23 05:42:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-12-23 05:42:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 885. [2023-12-23 05:42:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 606 states have (on average 1.5247524752475248) internal successors, (924), 609 states have internal predecessors, (924), 266 states have call successors, (266), 12 states have call predecessors, (266), 12 states have return successors, (266), 263 states have call predecessors, (266), 266 states have call successors, (266) [2023-12-23 05:42:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1456 transitions. [2023-12-23 05:42:28,657 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1456 transitions. Word has length 618 [2023-12-23 05:42:28,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:42:28,659 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1456 transitions. [2023-12-23 05:42:28,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.055555555555555) internal successors, (163), 18 states have internal predecessors, (163), 4 states have call successors, (153), 4 states have call predecessors, (153), 10 states have return successors, (154), 4 states have call predecessors, (154), 4 states have call successors, (154) [2023-12-23 05:42:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1456 transitions. [2023-12-23 05:42:28,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:42:28,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:42:28,664 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:28,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 05:42:28,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:42:28,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:42:28,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:42:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash 358871279, now seen corresponding path program 1 times [2023-12-23 05:42:28,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:42:28,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667205175] [2023-12-23 05:42:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:42:28,892 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 05:42:28,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:42:28,894 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 05:42:28,895 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 05:42:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:42:30,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:42:30,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:42:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:42:39,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:42:39,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:42:39,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667205175] [2023-12-23 05:42:39,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667205175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:42:39,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:42:39,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:42:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267113275] [2023-12-23 05:42:39,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:42:39,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:42:39,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:42:39,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:42:39,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:42:39,511 INFO L87 Difference]: Start difference. First operand 885 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:42:41,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:43,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:44,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:46,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:50,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:54,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:42:58,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:03,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:05,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:09,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:11,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:16,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:20,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:24,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:26,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:28,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:30,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:32,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:34,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:35,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:38,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:42,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:47,129 WARN L539 Checker$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 05:43:49,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:52,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:54,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:43:57,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:44:01,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:44:04,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:44:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:04,822 INFO L93 Difference]: Finished difference Result 2281 states and 3729 transitions. [2023-12-23 05:44:04,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:44:04,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 619 [2023-12-23 05:44:04,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:04,830 INFO L225 Difference]: With dead ends: 2281 [2023-12-23 05:44:04,830 INFO L226 Difference]: Without dead ends: 1459 [2023-12-23 05:44:04,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:04,834 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 145 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:04,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 847 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 9 Unknown, 0 Unchecked, 85.2s Time] [2023-12-23 05:44:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-12-23 05:44:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1455. [2023-12-23 05:44:04,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 970 states have (on average 1.4938144329896907) internal successors, (1449), 973 states have internal predecessors, (1449), 460 states have call successors, (460), 24 states have call predecessors, (460), 24 states have return successors, (460), 457 states have call predecessors, (460), 460 states have call successors, (460) [2023-12-23 05:44:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2369 transitions. [2023-12-23 05:44:04,954 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2369 transitions. Word has length 619 [2023-12-23 05:44:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:04,955 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2369 transitions. [2023-12-23 05:44:04,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2369 transitions. [2023-12-23 05:44:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:04,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:04,959 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:05,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 05:44:05,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:05,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:05,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1278250635, now seen corresponding path program 1 times [2023-12-23 05:44:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:05,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465450552] [2023-12-23 05:44:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:05,178 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 05:44:05,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:05,180 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:44:05,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 05:44:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:06,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:44:07,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:44:07,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:44:07,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:07,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465450552] [2023-12-23 05:44:07,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465450552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:44:07,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:44:07,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:44:07,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287770151] [2023-12-23 05:44:07,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:44:07,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:44:07,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:07,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:44:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:07,099 INFO L87 Difference]: Start difference. First operand 1455 states and 2369 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:11,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:44:15,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:44:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:15,430 INFO L93 Difference]: Finished difference Result 4239 states and 6901 transitions. [2023-12-23 05:44:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:44:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 619 [2023-12-23 05:44:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:15,470 INFO L225 Difference]: With dead ends: 4239 [2023-12-23 05:44:15,470 INFO L226 Difference]: Without dead ends: 2847 [2023-12-23 05:44:15,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:15,476 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 438 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:15,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1227 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-12-23 05:44:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2023-12-23 05:44:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1726. [2023-12-23 05:44:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1138 states have (on average 1.4806678383128296) internal successors, (1685), 1142 states have internal predecessors, (1685), 557 states have call successors, (557), 30 states have call predecessors, (557), 30 states have return successors, (557), 553 states have call predecessors, (557), 557 states have call successors, (557) [2023-12-23 05:44:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2799 transitions. [2023-12-23 05:44:15,753 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2799 transitions. Word has length 619 [2023-12-23 05:44:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:15,754 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2799 transitions. [2023-12-23 05:44:15,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2799 transitions. [2023-12-23 05:44:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:15,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:15,759 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:15,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 05:44:15,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:15,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:15,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash 772733363, now seen corresponding path program 1 times [2023-12-23 05:44:15,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:15,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437922649] [2023-12-23 05:44:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:15,965 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 05:44:15,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:15,966 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 05:44:15,972 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 05:44:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:17,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:44:17,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:44:17,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:44:17,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:17,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437922649] [2023-12-23 05:44:17,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437922649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:44:17,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:44:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:44:17,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661108054] [2023-12-23 05:44:17,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:44:17,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:44:17,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:17,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:44:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:17,821 INFO L87 Difference]: Start difference. First operand 1726 states and 2799 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:21,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:44:22,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:22,145 INFO L93 Difference]: Finished difference Result 4065 states and 6575 transitions. [2023-12-23 05:44:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:44:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 619 [2023-12-23 05:44:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:22,154 INFO L225 Difference]: With dead ends: 4065 [2023-12-23 05:44:22,154 INFO L226 Difference]: Without dead ends: 2402 [2023-12-23 05:44:22,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:22,159 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 170 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:22,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 973 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 05:44:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-12-23 05:44:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2395. [2023-12-23 05:44:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 1580 states have (on average 1.4670886075949368) internal successors, (2318), 1591 states have internal predecessors, (2318), 774 states have call successors, (774), 40 states have call predecessors, (774), 40 states have return successors, (774), 763 states have call predecessors, (774), 774 states have call successors, (774) [2023-12-23 05:44:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3866 transitions. [2023-12-23 05:44:22,348 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3866 transitions. Word has length 619 [2023-12-23 05:44:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:22,349 INFO L495 AbstractCegarLoop]: Abstraction has 2395 states and 3866 transitions. [2023-12-23 05:44:22,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3866 transitions. [2023-12-23 05:44:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:22,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:22,354 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:22,399 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 05:44:22,569 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 05:44:22,569 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:22,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1084803893, now seen corresponding path program 1 times [2023-12-23 05:44:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:22,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463279707] [2023-12-23 05:44:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:22,571 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 05:44:22,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:22,572 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 05:44:22,574 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 05:44:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:24,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:44:24,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 9028 proven. 114 refuted. 0 times theorem prover too weak. 9482 trivial. 0 not checked. [2023-12-23 05:44:25,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:44:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 174 proven. 114 refuted. 0 times theorem prover too weak. 18336 trivial. 0 not checked. [2023-12-23 05:44:26,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:26,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463279707] [2023-12-23 05:44:26,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463279707] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:44:26,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:44:26,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:44:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390186794] [2023-12-23 05:44:26,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:44:26,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:44:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:26,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:44:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:44:26,416 INFO L87 Difference]: Start difference. First operand 2395 states and 3866 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) [2023-12-23 05:44:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:29,266 INFO L93 Difference]: Finished difference Result 4817 states and 7700 transitions. [2023-12-23 05:44:29,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:44:29,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) Word has length 619 [2023-12-23 05:44:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:29,277 INFO L225 Difference]: With dead ends: 4817 [2023-12-23 05:44:29,277 INFO L226 Difference]: Without dead ends: 2485 [2023-12-23 05:44:29,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1230 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:44:29,284 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 384 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:29,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 952 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-23 05:44:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2023-12-23 05:44:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2416. [2023-12-23 05:44:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 1574 states have (on average 1.4027954256670903) internal successors, (2208), 1585 states have internal predecessors, (2208), 792 states have call successors, (792), 49 states have call predecessors, (792), 49 states have return successors, (792), 781 states have call predecessors, (792), 792 states have call successors, (792) [2023-12-23 05:44:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3792 transitions. [2023-12-23 05:44:29,486 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3792 transitions. Word has length 619 [2023-12-23 05:44:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:29,486 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3792 transitions. [2023-12-23 05:44:29,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (135), 2 states have call predecessors, (135), 4 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) [2023-12-23 05:44:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3792 transitions. [2023-12-23 05:44:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:29,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:29,491 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:29,544 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 05:44:29,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:29,717 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:29,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:29,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1146843507, now seen corresponding path program 1 times [2023-12-23 05:44:29,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:29,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251836652] [2023-12-23 05:44:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:29,718 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 05:44:29,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:29,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:44:29,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-23 05:44:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:31,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:44:31,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:44:31,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:44:31,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:31,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251836652] [2023-12-23 05:44:31,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251836652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:44:31,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:44:31,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:44:31,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219925069] [2023-12-23 05:44:31,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:44:31,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:44:31,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:44:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:31,870 INFO L87 Difference]: Start difference. First operand 2416 states and 3792 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:32,041 INFO L93 Difference]: Finished difference Result 4752 states and 7444 transitions. [2023-12-23 05:44:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:44:32,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 619 [2023-12-23 05:44:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:32,050 INFO L225 Difference]: With dead ends: 4752 [2023-12-23 05:44:32,051 INFO L226 Difference]: Without dead ends: 2442 [2023-12-23 05:44:32,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:44:32,057 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 159 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:32,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 949 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:44:32,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-12-23 05:44:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2226. [2023-12-23 05:44:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1447 states have (on average 1.3939184519695922) internal successors, (2017), 1454 states have internal predecessors, (2017), 728 states have call successors, (728), 50 states have call predecessors, (728), 50 states have return successors, (728), 721 states have call predecessors, (728), 728 states have call successors, (728) [2023-12-23 05:44:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3473 transitions. [2023-12-23 05:44:32,233 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3473 transitions. Word has length 619 [2023-12-23 05:44:32,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:32,234 INFO L495 AbstractCegarLoop]: Abstraction has 2226 states and 3473 transitions. [2023-12-23 05:44:32,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3473 transitions. [2023-12-23 05:44:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:32,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:32,239 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:32,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-23 05:44:32,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:32,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:32,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1153979083, now seen corresponding path program 1 times [2023-12-23 05:44:32,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:32,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139243535] [2023-12-23 05:44:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:32,455 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 05:44:32,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:32,456 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 05:44:32,488 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 05:44:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:34,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:44:34,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 9136 proven. 168 refuted. 0 times theorem prover too weak. 9320 trivial. 0 not checked. [2023-12-23 05:44:35,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:44:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 120 proven. 168 refuted. 0 times theorem prover too weak. 18336 trivial. 0 not checked. [2023-12-23 05:44:36,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:36,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139243535] [2023-12-23 05:44:36,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139243535] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:44:36,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:44:36,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 05:44:36,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035351473] [2023-12-23 05:44:36,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:44:36,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 05:44:36,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:36,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 05:44:36,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:44:36,731 INFO L87 Difference]: Start difference. First operand 2226 states and 3473 transitions. Second operand has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) [2023-12-23 05:44:39,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:39,499 INFO L93 Difference]: Finished difference Result 4412 states and 6853 transitions. [2023-12-23 05:44:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 05:44:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) Word has length 619 [2023-12-23 05:44:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:39,508 INFO L225 Difference]: With dead ends: 4412 [2023-12-23 05:44:39,508 INFO L226 Difference]: Without dead ends: 2296 [2023-12-23 05:44:39,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1244 GetRequests, 1230 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 05:44:39,513 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 612 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:39,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 951 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-23 05:44:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2023-12-23 05:44:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2226. [2023-12-23 05:44:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1447 states have (on average 1.387007601935038) internal successors, (2007), 1454 states have internal predecessors, (2007), 728 states have call successors, (728), 50 states have call predecessors, (728), 50 states have return successors, (728), 721 states have call predecessors, (728), 728 states have call successors, (728) [2023-12-23 05:44:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3463 transitions. [2023-12-23 05:44:39,678 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3463 transitions. Word has length 619 [2023-12-23 05:44:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:39,679 INFO L495 AbstractCegarLoop]: Abstraction has 2226 states and 3463 transitions. [2023-12-23 05:44:39,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (154), 2 states have call predecessors, (154), 2 states have call successors, (154) [2023-12-23 05:44:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3463 transitions. [2023-12-23 05:44:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:39,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:39,683 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:39,756 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 05:44:39,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:39,889 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:39,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2119919859, now seen corresponding path program 1 times [2023-12-23 05:44:39,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:39,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693413598] [2023-12-23 05:44:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:39,890 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 05:44:39,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:39,891 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:44:39,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-23 05:44:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:41,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:44:41,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 4986 proven. 243 refuted. 0 times theorem prover too weak. 13395 trivial. 0 not checked. [2023-12-23 05:44:43,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:44:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 45 proven. 243 refuted. 0 times theorem prover too weak. 18336 trivial. 0 not checked. [2023-12-23 05:44:45,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:45,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693413598] [2023-12-23 05:44:45,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693413598] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:44:45,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:44:45,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 05:44:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014635840] [2023-12-23 05:44:45,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:44:45,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 05:44:45,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 05:44:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:44:45,121 INFO L87 Difference]: Start difference. First operand 2226 states and 3463 transitions. Second operand has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2023-12-23 05:44:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:46,899 INFO L93 Difference]: Finished difference Result 4458 states and 6848 transitions. [2023-12-23 05:44:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 05:44:46,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) Word has length 619 [2023-12-23 05:44:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:46,908 INFO L225 Difference]: With dead ends: 4458 [2023-12-23 05:44:46,908 INFO L226 Difference]: Without dead ends: 2342 [2023-12-23 05:44:46,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1244 GetRequests, 1230 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 05:44:46,913 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 361 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:46,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 759 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-23 05:44:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2023-12-23 05:44:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2250. [2023-12-23 05:44:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 1460 states have (on average 1.3493150684931507) internal successors, (1970), 1467 states have internal predecessors, (1970), 728 states have call successors, (728), 61 states have call predecessors, (728), 61 states have return successors, (728), 721 states have call predecessors, (728), 728 states have call successors, (728) [2023-12-23 05:44:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 3426 transitions. [2023-12-23 05:44:47,110 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 3426 transitions. Word has length 619 [2023-12-23 05:44:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:47,110 INFO L495 AbstractCegarLoop]: Abstraction has 2250 states and 3426 transitions. [2023-12-23 05:44:47,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (178), 2 states have call predecessors, (178), 4 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2023-12-23 05:44:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 3426 transitions. [2023-12-23 05:44:47,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-23 05:44:47,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:47,115 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:47,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-23 05:44:47,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:44:47,341 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:47,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1726892849, now seen corresponding path program 1 times [2023-12-23 05:44:47,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:47,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020339816] [2023-12-23 05:44:47,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:47,342 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 05:44:47,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:47,343 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 05:44:47,380 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 05:44:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:49,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:44:49,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:44:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:44:51,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:44:51,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:44:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020339816] [2023-12-23 05:44:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020339816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:44:51,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:44:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 05:44:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575220154] [2023-12-23 05:44:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:44:51,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 05:44:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:44:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 05:44:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:44:51,842 INFO L87 Difference]: Start difference. First operand 2250 states and 3426 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:44:53,644 INFO L93 Difference]: Finished difference Result 5166 states and 7948 transitions. [2023-12-23 05:44:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 05:44:53,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 619 [2023-12-23 05:44:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:44:53,654 INFO L225 Difference]: With dead ends: 5166 [2023-12-23 05:44:53,655 INFO L226 Difference]: Without dead ends: 3030 [2023-12-23 05:44:53,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-23 05:44:53,659 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 517 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:44:53,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1849 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-23 05:44:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-12-23 05:44:53,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 1991. [2023-12-23 05:44:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1305 states have (on average 1.3601532567049808) internal successors, (1775), 1310 states have internal predecessors, (1775), 633 states have call successors, (633), 52 states have call predecessors, (633), 52 states have return successors, (633), 628 states have call predecessors, (633), 633 states have call successors, (633) [2023-12-23 05:44:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3041 transitions. [2023-12-23 05:44:53,863 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3041 transitions. Word has length 619 [2023-12-23 05:44:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:44:53,864 INFO L495 AbstractCegarLoop]: Abstraction has 1991 states and 3041 transitions. [2023-12-23 05:44:53,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:44:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3041 transitions. [2023-12-23 05:44:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2023-12-23 05:44:53,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:44:53,877 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:53,927 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 05:44:54,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 05:44:54,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:44:54,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:44:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1993842556, now seen corresponding path program 1 times [2023-12-23 05:44:54,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:44:54,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550783383] [2023-12-23 05:44:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:44:54,094 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 05:44:54,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:44:54,095 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:44:54,096 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 (14)] Waiting until timeout for monitored process [2023-12-23 05:44:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:44:55,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:44:55,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:45:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:45:02,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:45:02,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:45:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550783383] [2023-12-23 05:45:02,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550783383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:45:02,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:45:02,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 05:45:02,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153818897] [2023-12-23 05:45:02,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:45:02,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 05:45:02,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:45:02,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 05:45:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:45:02,137 INFO L87 Difference]: Start difference. First operand 1991 states and 3041 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:45:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:45:03,499 INFO L93 Difference]: Finished difference Result 5633 states and 8612 transitions. [2023-12-23 05:45:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 05:45:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 620 [2023-12-23 05:45:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:45:03,517 INFO L225 Difference]: With dead ends: 5633 [2023-12-23 05:45:03,517 INFO L226 Difference]: Without dead ends: 3829 [2023-12-23 05:45:03,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:45:03,522 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 330 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-23 05:45:03,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1476 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-23 05:45:03,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2023-12-23 05:45:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3793. [2023-12-23 05:45:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3793 states, 2527 states have (on average 1.368816778789078) internal successors, (3459), 2536 states have internal predecessors, (3459), 1169 states have call successors, (1169), 96 states have call predecessors, (1169), 96 states have return successors, (1169), 1160 states have call predecessors, (1169), 1169 states have call successors, (1169) [2023-12-23 05:45:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3793 states to 3793 states and 5797 transitions. [2023-12-23 05:45:03,929 INFO L78 Accepts]: Start accepts. Automaton has 3793 states and 5797 transitions. Word has length 620 [2023-12-23 05:45:03,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:45:03,929 INFO L495 AbstractCegarLoop]: Abstraction has 3793 states and 5797 transitions. [2023-12-23 05:45:03,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:45:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3793 states and 5797 transitions. [2023-12-23 05:45:03,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-12-23 05:45:03,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:45:03,933 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:03,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-23 05:45:04,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:45:04,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:45:04,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:45:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1684222830, now seen corresponding path program 1 times [2023-12-23 05:45:04,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:45:04,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013814386] [2023-12-23 05:45:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:45:04,158 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 05:45:04,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:45:04,159 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 05:45:04,166 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 05:45:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:45:06,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:45:06,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:45:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2023-12-23 05:45:13,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:45:13,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:45:13,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013814386] [2023-12-23 05:45:13,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013814386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:45:13,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:45:13,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 05:45:13,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089219297] [2023-12-23 05:45:13,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:45:13,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 05:45:13,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:45:13,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 05:45:13,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:45:13,206 INFO L87 Difference]: Start difference. First operand 3793 states and 5797 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:45:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:45:19,715 INFO L93 Difference]: Finished difference Result 15415 states and 23744 transitions. [2023-12-23 05:45:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 05:45:19,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 621 [2023-12-23 05:45:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:45:19,747 INFO L225 Difference]: With dead ends: 15415 [2023-12-23 05:45:19,747 INFO L226 Difference]: Without dead ends: 11809 [2023-12-23 05:45:19,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:45:19,759 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 604 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-23 05:45:19,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1617 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-23 05:45:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11809 states. [2023-12-23 05:45:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11809 to 10977. [2023-12-23 05:45:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10977 states, 7391 states have (on average 1.3696387498308753) internal successors, (10123), 7416 states have internal predecessors, (10123), 3313 states have call successors, (3313), 272 states have call predecessors, (3313), 272 states have return successors, (3313), 3288 states have call predecessors, (3313), 3313 states have call successors, (3313) [2023-12-23 05:45:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10977 states to 10977 states and 16749 transitions. [2023-12-23 05:45:21,119 INFO L78 Accepts]: Start accepts. Automaton has 10977 states and 16749 transitions. Word has length 621 [2023-12-23 05:45:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:45:21,119 INFO L495 AbstractCegarLoop]: Abstraction has 10977 states and 16749 transitions. [2023-12-23 05:45:21,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2023-12-23 05:45:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 10977 states and 16749 transitions. [2023-12-23 05:45:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-12-23 05:45:21,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:45:21,125 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:21,173 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 05:45:21,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 05:45:21,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:45:21,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:45:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1330880788, now seen corresponding path program 1 times [2023-12-23 05:45:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:45:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083053818] [2023-12-23 05:45:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:45:21,354 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 05:45:21,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:45:21,366 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:45:21,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-23 05:45:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:45:23,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-23 05:45:23,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:45:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 11617 proven. 420 refuted. 0 times theorem prover too weak. 6587 trivial. 0 not checked. [2023-12-23 05:45:36,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:45:47,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:45:47,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083053818] [2023-12-23 05:45:47,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083053818] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:45:47,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1298262295] [2023-12-23 05:45:47,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:45:47,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:45:47,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:45:47,389 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:45:47,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-23 05:46:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:46:05,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-23 05:46:05,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:47:31,794 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 154 DAG size of output: 154 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 05:47:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 13938 proven. 678 refuted. 0 times theorem prover too weak. 4008 trivial. 0 not checked. [2023-12-23 05:47:36,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:49:16,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1298262295] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:49:16,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:49:16,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 31] total 44 [2023-12-23 05:49:16,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865719017] [2023-12-23 05:49:16,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:49:16,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-23 05:49:16,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:49:16,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-23 05:49:16,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=694, Invalid=3460, Unknown=6, NotChecked=0, Total=4160 [2023-12-23 05:49:16,520 INFO L87 Difference]: Start difference. First operand 10977 states and 16749 transitions. Second operand has 45 states, 45 states have (on average 6.222222222222222) internal successors, (280), 44 states have internal predecessors, (280), 10 states have call successors, (173), 10 states have call predecessors, (173), 17 states have return successors, (174), 10 states have call predecessors, (174), 10 states have call successors, (174) [2023-12-23 05:49:26,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:49:47,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:50:08,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:50:36,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:50:51,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:50:52,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:11,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:14,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:15,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:42,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:48,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:53,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:58,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:02,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:06,675 WARN L539 Checker$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 [0] [2023-12-23 05:52:10,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:14,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:18,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:22,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:26,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:30,712 WARN L539 Checker$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 [0] [2023-12-23 05:52:34,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:38,722 WARN L539 Checker$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 [0] [2023-12-23 05:52:42,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:46,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:50,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:54,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:52:58,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:02,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:06,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:10,813 WARN L539 Checker$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 [0] [2023-12-23 05:53:14,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:18,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:22,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:26,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:30,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:34,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:38,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:42,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:47,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:51,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:55,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:53:59,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:03,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:54:06,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:54:12,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:16,421 WARN L539 Checker$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 [0] [2023-12-23 05:54:20,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:54:24,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:28,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:32,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:36,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:40,746 WARN L539 Checker$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 [0] [2023-12-23 05:54:44,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:48,752 WARN L539 Checker$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 [0] [2023-12-23 05:54:51,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:54:58,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:04,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:08,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:12,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:16,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:20,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:24,516 WARN L539 Checker$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 [0] [2023-12-23 05:55:28,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:32,523 WARN L539 Checker$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 [0] [2023-12-23 05:55:36,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:55:40,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-23 05:55:43,898 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:55:43,899 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:55:43,903 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:55:44,543 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 [0] [2023-12-23 05:55:44,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-12-23 05:55:44,957 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 (16)] Ended with exit code 0 [2023-12-23 05:55:45,099 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 05:55:45,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 05:55:45,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1436 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3193 ImplicationChecksByTransitivity, 160.5s TimeCoverageRelationStatistics Valid=1840, Invalid=8657, Unknown=9, NotChecked=0, Total=10506 [2023-12-23 05:55:45,146 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 1341 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 4924 mSolverCounterSat, 297 mSolverCounterUnsat, 58 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 5280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 4924 IncrementalHoareTripleChecker+Invalid, 58 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 326.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:55:45,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1767 Invalid, 5280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [297 Valid, 4924 Invalid, 58 Unknown, 0 Unchecked, 326.3s Time] [2023-12-23 05:55:45,147 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 05:55:45,147 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-23 05:55:45,151 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:55:45,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 05:55:45,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:55:45 BoogieIcfgContainer [2023-12-23 05:55:45,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 05:55:45,154 INFO L158 Benchmark]: Toolchain (without parser) took 864760.43ms. Allocated memory was 198.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 148.5MB in the beginning and 550.8MB in the end (delta: -402.3MB). Peak memory consumption was 617.8MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,154 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 198.2MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 05:55:45,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.78ms. Allocated memory is still 198.2MB. Free memory was 148.2MB in the beginning and 116.8MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.68ms. Allocated memory is still 198.2MB. Free memory was 116.8MB in the beginning and 110.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,155 INFO L158 Benchmark]: Boogie Preprocessor took 115.66ms. Allocated memory was 198.2MB in the beginning and 239.1MB in the end (delta: 40.9MB). Free memory was 110.8MB in the beginning and 202.8MB in the end (delta: -92.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,156 INFO L158 Benchmark]: RCFGBuilder took 41187.67ms. Allocated memory is still 239.1MB. Free memory was 202.8MB in the beginning and 132.1MB in the end (delta: 70.7MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,156 INFO L158 Benchmark]: TraceAbstraction took 822973.23ms. Allocated memory was 239.1MB in the beginning and 1.2GB in the end (delta: 978.3MB). Free memory was 131.6MB in the beginning and 550.8MB in the end (delta: -419.2MB). Peak memory consumption was 559.1MB. Max. memory is 8.0GB. [2023-12-23 05:55:45,156 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 198.2MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.78ms. Allocated memory is still 198.2MB. Free memory was 148.2MB in the beginning and 116.8MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.68ms. Allocated memory is still 198.2MB. Free memory was 116.8MB in the beginning and 110.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 115.66ms. Allocated memory was 198.2MB in the beginning and 239.1MB in the end (delta: 40.9MB). Free memory was 110.8MB in the beginning and 202.8MB in the end (delta: -92.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 41187.67ms. Allocated memory is still 239.1MB. Free memory was 202.8MB in the beginning and 132.1MB in the end (delta: 70.7MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. * TraceAbstraction took 822973.23ms. Allocated memory was 239.1MB in the beginning and 1.2GB in the end (delta: 978.3MB). Free memory was 131.6MB in the beginning and 550.8MB in the end (delta: -419.2MB). Peak memory consumption was 559.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 271 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 822.9s, OverallIterations: 15, TraceHistogramMax: 97, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 513.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 mSolverCounterUnknown, 7994 SdHoareTripleChecker+Valid, 446.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7810 mSDsluCounter, 17392 SdHoareTripleChecker+Invalid, 439.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9932 mSDsCounter, 2101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10441 IncrementalHoareTripleChecker+Invalid, 12613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2101 mSolverCounterUnsat, 7460 mSDtfsCounter, 10441 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13234 GetRequests, 13020 SyntacticMatches, 5 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3843 ImplicationChecksByTransitivity, 163.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10977occurred in iteration=14, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 3524 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 41.9s SatisfiabilityAnalysisTime, 259.4s InterpolantComputationTime, 9904 NumberOfCodeBlocks, 9904 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 12976 ConstructedInterpolants, 141 QuantifiedInterpolants, 70600 SizeOfPredicates, 81 NumberOfNonLiveVariables, 16142 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 21 InterpolantComputations, 9 PerfectInterpolantSequences, 387687/391104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown