/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-250_file-95.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 03:08:41,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 03:08:41,904 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 03:08:41,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 03:08:41,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 03:08:41,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 03:08:41,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 03:08:41,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 03:08:41,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 03:08:41,932 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 03:08:41,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 03:08:41,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 03:08:41,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 03:08:41,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 03:08:41,934 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 03:08:41,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 03:08:41,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 03:08:41,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 03:08:41,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 03:08:41,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 03:08:41,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 03:08:41,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 03:08:41,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 03:08:41,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 03:08:41,936 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 03:08:41,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:08:41,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 03:08:41,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 03:08:41,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 03:08:41,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 03:08:41,939 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 03:08:41,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 03:08:42,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 03:08:42,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 03:08:42,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 03:08:42,123 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 03:08:42,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 03:08:42,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2023-12-23 03:08:43,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 03:08:43,323 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 03:08:43,323 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2023-12-23 03:08:43,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f0b1d96/a96594c284a54b648f2a6c1b7181ba17/FLAG02454f089 [2023-12-23 03:08:43,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f0b1d96/a96594c284a54b648f2a6c1b7181ba17 [2023-12-23 03:08:43,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 03:08:43,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 03:08:43,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 03:08:43,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 03:08:43,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 03:08:43,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1312300b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43, skipping insertion in model container [2023-12-23 03:08:43,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 03:08:43,500 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-250_file-95.i[916,929] [2023-12-23 03:08:43,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:08:43,604 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 03:08:43,611 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-250_file-95.i[916,929] [2023-12-23 03:08:43,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:08:43,696 INFO L206 MainTranslator]: Completed translation [2023-12-23 03:08:43,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43 WrapperNode [2023-12-23 03:08:43,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 03:08:43,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 03:08:43,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 03:08:43,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 03:08:43,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,750 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 422 [2023-12-23 03:08:43,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 03:08:43,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 03:08:43,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 03:08:43,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 03:08:43,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,785 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 03:08:43,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 03:08:43,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 03:08:43,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 03:08:43,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 03:08:43,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (1/1) ... [2023-12-23 03:08:43,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:08:43,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 03:08:43,843 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 03:08:43,861 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 03:08:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 03:08:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 03:08:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 03:08:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 03:08:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 03:08:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 03:08:43,976 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 03:08:43,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 03:09:11,284 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 03:09:11,329 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 03:09:11,330 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 03:09:11,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:09:11 BoogieIcfgContainer [2023-12-23 03:09:11,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 03:09:11,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 03:09:11,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 03:09:11,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 03:09:11,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:08:43" (1/3) ... [2023-12-23 03:09:11,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52db90e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:09:11, skipping insertion in model container [2023-12-23 03:09:11,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:08:43" (2/3) ... [2023-12-23 03:09:11,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52db90e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:09:11, skipping insertion in model container [2023-12-23 03:09:11,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:09:11" (3/3) ... [2023-12-23 03:09:11,336 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2023-12-23 03:09:11,349 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 03:09:11,349 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 03:09:11,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 03:09:11,395 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;@7c89ed79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 03:09:11,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 03:09:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 115 states have (on average 1.5565217391304347) internal successors, (179), 116 states have internal predecessors, (179), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-23 03:09:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-12-23 03:09:11,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:09:11,417 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:11,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:09:11,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:09:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash -952685598, now seen corresponding path program 1 times [2023-12-23 03:09:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:09:11,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132152298] [2023-12-23 03:09:11,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:09:11,436 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 03:09:11,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:09:11,438 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 03:09:11,441 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 03:09:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:09:12,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 03:09:12,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:09:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3968 proven. 0 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2023-12-23 03:09:12,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:09:12,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:09:12,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132152298] [2023-12-23 03:09:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132152298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:09:12,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:09:12,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 03:09:12,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989717910] [2023-12-23 03:09:12,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:09:12,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 03:09:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:09:12,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 03:09:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 03:09:12,943 INFO L87 Difference]: Start difference. First operand has 181 states, 115 states have (on average 1.5565217391304347) internal successors, (179), 116 states have internal predecessors, (179), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-23 03:09:17,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:09:17,691 INFO L93 Difference]: Finished difference Result 358 states and 669 transitions. [2023-12-23 03:09:17,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 03:09:17,941 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 398 [2023-12-23 03:09:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:09:17,949 INFO L225 Difference]: With dead ends: 358 [2023-12-23 03:09:17,949 INFO L226 Difference]: Without dead ends: 178 [2023-12-23 03:09:17,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 397 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 03:09:17,955 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 03:09:17,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 294 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 03:09:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-23 03:09:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2023-12-23 03:09:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 113 states have (on average 1.5132743362831858) internal successors, (171), 113 states have internal predecessors, (171), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-23 03:09:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 297 transitions. [2023-12-23 03:09:18,019 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 297 transitions. Word has length 398 [2023-12-23 03:09:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:09:18,020 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 297 transitions. [2023-12-23 03:09:18,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-23 03:09:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 297 transitions. [2023-12-23 03:09:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2023-12-23 03:09:18,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:09:18,026 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:18,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 03:09:18,242 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 03:09:18,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:09:18,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:09:18,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1710791088, now seen corresponding path program 1 times [2023-12-23 03:09:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:09:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130380893] [2023-12-23 03:09:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:09:18,245 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 03:09:18,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:09:18,246 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 03:09:18,249 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 03:09:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:09:19,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 03:09:19,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:09:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2023-12-23 03:09:19,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:09:19,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:09:19,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130380893] [2023-12-23 03:09:19,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130380893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:09:19,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:09:19,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 03:09:19,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744151196] [2023-12-23 03:09:19,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:09:19,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:09:19,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:09:19,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:09:19,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 03:09:19,657 INFO L87 Difference]: Start difference. First operand 178 states and 297 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:09:24,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:09:24,952 INFO L93 Difference]: Finished difference Result 402 states and 666 transitions. [2023-12-23 03:09:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:09:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 398 [2023-12-23 03:09:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:09:24,956 INFO L225 Difference]: With dead ends: 402 [2023-12-23 03:09:24,956 INFO L226 Difference]: Without dead ends: 225 [2023-12-23 03:09:24,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 396 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 03:09:24,958 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 183 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-23 03:09:24,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 526 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-12-23 03:09:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-23 03:09:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 224. [2023-12-23 03:09:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 132 states have internal predecessors, (188), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-23 03:09:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 368 transitions. [2023-12-23 03:09:24,994 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 368 transitions. Word has length 398 [2023-12-23 03:09:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:09:24,996 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 368 transitions. [2023-12-23 03:09:24,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:09:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 368 transitions. [2023-12-23 03:09:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-12-23 03:09:25,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:09:25,003 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:25,036 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 03:09:25,228 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 03:09:25,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:09:25,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:09:25,229 INFO L85 PathProgramCache]: Analyzing trace with hash -138767774, now seen corresponding path program 1 times [2023-12-23 03:09:25,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:09:25,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571934095] [2023-12-23 03:09:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:09:25,230 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 03:09:25,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:09:25,232 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 03:09:25,239 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 03:09:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:09:26,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 03:09:26,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:09:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2023-12-23 03:09:26,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:09:26,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:09:26,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571934095] [2023-12-23 03:09:26,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571934095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:09:26,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:09:26,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 03:09:26,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179485739] [2023-12-23 03:09:26,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:09:26,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 03:09:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:09:26,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 03:09:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 03:09:26,875 INFO L87 Difference]: Start difference. First operand 224 states and 368 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:09:32,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:36,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:40,042 WARN L539 Checker$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 03:09:44,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:48,064 WARN L539 Checker$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 03:09:52,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:09:56,109 WARN L539 Checker$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 03:10:00,125 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 [] [2023-12-23 03:10:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:10:00,539 INFO L93 Difference]: Finished difference Result 697 states and 1148 transitions. [2023-12-23 03:10:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 03:10:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 399 [2023-12-23 03:10:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:10:00,545 INFO L225 Difference]: With dead ends: 697 [2023-12-23 03:10:00,545 INFO L226 Difference]: Without dead ends: 516 [2023-12-23 03:10:00,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 03:10:00,547 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 527 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 46 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2023-12-23 03:10:00,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1068 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 49 Invalid, 8 Unknown, 0 Unchecked, 33.6s Time] [2023-12-23 03:10:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-23 03:10:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 507. [2023-12-23 03:10:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 350 states have (on average 1.5371428571428571) internal successors, (538), 354 states have internal predecessors, (538), 149 states have call successors, (149), 7 states have call predecessors, (149), 7 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-23 03:10:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 836 transitions. [2023-12-23 03:10:00,599 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 836 transitions. Word has length 399 [2023-12-23 03:10:00,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:10:00,600 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 836 transitions. [2023-12-23 03:10:00,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:10:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 836 transitions. [2023-12-23 03:10:00,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-23 03:10:00,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:10:00,603 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:00,641 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 03:10:00,819 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 03:10:00,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:10:00,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:10:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash -481810823, now seen corresponding path program 1 times [2023-12-23 03:10:00,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:10:00,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917651603] [2023-12-23 03:10:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:10:00,821 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 03:10:00,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:10:00,822 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 03:10:00,824 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 03:10:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:10:02,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 03:10:02,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:10:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2023-12-23 03:10:15,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:10:15,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:10:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917651603] [2023-12-23 03:10:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917651603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:10:15,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:10:15,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 03:10:15,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622044418] [2023-12-23 03:10:15,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:10:15,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:10:15,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:10:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:10:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 03:10:15,710 INFO L87 Difference]: Start difference. First operand 507 states and 836 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:10:20,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:25,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:30,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:31,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:36,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:40,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:44,864 WARN L539 Checker$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 03:10:51,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:10:55,146 WARN L539 Checker$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 03:10:59,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:04,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:09,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:12,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:15,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:19,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:24,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:11:24,823 INFO L93 Difference]: Finished difference Result 1427 states and 2362 transitions. [2023-12-23 03:11:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:11:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 400 [2023-12-23 03:11:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:11:25,087 INFO L225 Difference]: With dead ends: 1427 [2023-12-23 03:11:25,087 INFO L226 Difference]: Without dead ends: 967 [2023-12-23 03:11:25,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 03:11:25,090 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 86 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.0s IncrementalHoareTripleChecker+Time [2023-12-23 03:11:25,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 507 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 12 Unknown, 0 Unchecked, 69.0s Time] [2023-12-23 03:11:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-23 03:11:25,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2023-12-23 03:11:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 680 states have (on average 1.5470588235294118) internal successors, (1052), 687 states have internal predecessors, (1052), 271 states have call successors, (271), 13 states have call predecessors, (271), 13 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2023-12-23 03:11:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1594 transitions. [2023-12-23 03:11:25,144 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1594 transitions. Word has length 400 [2023-12-23 03:11:25,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:11:25,145 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1594 transitions. [2023-12-23 03:11:25,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2023-12-23 03:11:25,146 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1594 transitions. [2023-12-23 03:11:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-23 03:11:25,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:11:25,149 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:25,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-23 03:11:25,349 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 03:11:25,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:11:25,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:11:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash -424552521, now seen corresponding path program 1 times [2023-12-23 03:11:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:11:25,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475032042] [2023-12-23 03:11:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:11:25,351 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 03:11:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:11:25,352 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 03:11:25,354 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 03:11:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:11:26,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 03:11:26,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:11:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3591 proven. 240 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2023-12-23 03:11:35,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:11:35,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:11:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475032042] [2023-12-23 03:11:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475032042] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:11:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1616435368] [2023-12-23 03:11:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:11:35,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:11:35,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:11:35,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:11:35,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 03:11:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:11:42,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 03:11:42,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:11:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3548 proven. 123 refuted. 0 times theorem prover too weak. 4141 trivial. 0 not checked. [2023-12-23 03:11:46,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:11:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1616435368] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:11:46,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 03:11:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2023-12-23 03:11:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267232741] [2023-12-23 03:11:46,838 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 03:11:46,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 03:11:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:11:46,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 03:11:46,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-23 03:11:46,840 INFO L87 Difference]: Start difference. First operand 965 states and 1594 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (103), 3 states have call predecessors, (103), 5 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2023-12-23 03:11:55,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:11:59,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:12:03,895 WARN L539 Checker$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 03:12:07,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:12:11,922 WARN L539 Checker$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 03:12:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:12:11,947 INFO L93 Difference]: Finished difference Result 1941 states and 3155 transitions. [2023-12-23 03:12:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 03:12:12,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (103), 3 states have call predecessors, (103), 5 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) Word has length 400 [2023-12-23 03:12:12,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:12:12,224 INFO L225 Difference]: With dead ends: 1941 [2023-12-23 03:12:12,224 INFO L226 Difference]: Without dead ends: 1023 [2023-12-23 03:12:12,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-23 03:12:12,227 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 269 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 74 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-12-23 03:12:12,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 495 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 368 Invalid, 5 Unknown, 0 Unchecked, 24.6s Time] [2023-12-23 03:12:12,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-23 03:12:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 997. [2023-12-23 03:12:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 702 states have (on average 1.4957264957264957) internal successors, (1050), 709 states have internal predecessors, (1050), 271 states have call successors, (271), 23 states have call predecessors, (271), 23 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2023-12-23 03:12:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1592 transitions. [2023-12-23 03:12:12,268 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1592 transitions. Word has length 400 [2023-12-23 03:12:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:12:12,268 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1592 transitions. [2023-12-23 03:12:12,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (103), 3 states have call predecessors, (103), 5 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2023-12-23 03:12:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1592 transitions. [2023-12-23 03:12:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-23 03:12:12,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:12:12,271 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:12,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 03:12:12,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-23 03:12:12,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 03:12:12,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:12:12,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:12:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 172068853, now seen corresponding path program 1 times [2023-12-23 03:12:12,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:12:12,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397542515] [2023-12-23 03:12:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:12:12,673 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 03:12:12,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:12:12,680 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 03:12:12,680 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 03:12:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:12:14,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-23 03:12:14,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:12:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3509 proven. 480 refuted. 0 times theorem prover too weak. 3823 trivial. 0 not checked. [2023-12-23 03:12:32,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:12:36,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:12:36,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397542515] [2023-12-23 03:12:36,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397542515] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:12:36,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1417742174] [2023-12-23 03:12:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:12:36,251 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:12:36,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:12:36,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:12:36,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-23 03:12:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:12:49,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-23 03:12:49,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:13:39,717 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:13:48,640 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:13:57,563 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:06,487 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:18,094 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:26,601 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:35,516 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:44,441 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:49,741 WARN L293 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:14:58,674 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:07,598 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:16,522 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:25,413 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:31,111 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:40,028 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:48,976 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:15:53,220 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_6~0)) (.cse4 ((_ zero_extend 24) c_~var_1_5~0)) (.cse0 ((_ zero_extend 24) c_~var_1_4~0))) (and (= c_~var_1_15~0 (bvadd .cse0 .cse1)) (bvsle .cse0 (_ bv127 32)) (bvsle .cse1 (_ bv63 32)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse1 (_ bv5 32))) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2))))) (bvsge .cse4 (_ bv63 32)) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse4 .cse0) (let ((.cse5 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse5)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse5))) (= (_ bv0 16) c_~var_1_11~0) (= c_~last_1_var_1_15~0 (_ bv32 32)) (not (= c_~var_1_8~0 (_ bv0 8))))) is different from false [2023-12-23 03:16:04,796 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:13,763 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:22,711 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:31,644 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:40,586 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:49,516 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:16:58,445 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:07,003 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:15,952 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:24,893 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:33,430 WARN L293 SmtUtils]: Spent 8.54s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:42,351 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:17:51,305 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:00,247 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:09,194 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:18,110 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:27,051 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:35,987 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:18:40,236 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_6~0)) (.cse4 ((_ zero_extend 24) c_~var_1_5~0)) (.cse0 ((_ zero_extend 24) c_~var_1_4~0))) (and (= c_~var_1_15~0 (bvadd .cse0 .cse1)) (bvsle .cse0 (_ bv127 32)) (bvsle .cse1 (_ bv63 32)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse1 (_ bv5 32))) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2))))) (bvsge .cse4 (_ bv63 32)) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse4 .cse0) (let ((.cse5 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse5)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse5))) (= (_ bv0 16) c_~var_1_11~0) (= c_~last_1_var_1_15~0 (_ bv32 32)) (not (= c_~var_1_8~0 (_ bv0 8))) (not (fp.leq (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 54.0 5.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_12~0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_12~0)))))) is different from false [2023-12-23 03:18:44,496 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_6~0)) (.cse4 ((_ zero_extend 24) c_~var_1_5~0)) (.cse0 ((_ zero_extend 24) c_~var_1_4~0))) (and (= c_~var_1_15~0 (bvadd .cse0 .cse1)) (bvsle .cse0 (_ bv127 32)) (bvsle .cse1 (_ bv63 32)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse1 (_ bv5 32))) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2))))) (bvsge .cse4 (_ bv63 32)) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse4 .cse0) (let ((.cse5 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse5)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse5))) (= (_ bv0 16) c_~var_1_11~0) (= c_~last_1_var_1_15~0 (_ bv32 32)) (not (= c_~var_1_8~0 (_ bv0 8))) (not (fp.leq (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 54.0 5.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_12~0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_12~0)))))) is different from true [2023-12-23 03:18:53,427 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:02,350 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:11,281 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:20,235 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:29,184 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:38,160 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:47,150 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:19:55,712 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:04,670 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:13,658 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:22,212 WARN L293 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:31,156 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:40,109 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:49,080 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:20:58,025 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:07,040 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:16,016 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:24,996 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:33,986 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:42,946 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:21:51,909 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:00,916 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:09,883 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:18,845 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:27,782 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:36,349 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:45,321 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:22:54,289 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:23:02,823 WARN L293 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:23:11,770 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 03:23:20,728 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 03:23:24,820 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 03:23:24,820 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 03:23:24,820 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 03:23:25,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-23 03:23:25,867 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 03:23:26,021 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 03:23:26,087 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 03:23:26,089 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 03:23:26,089 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 401 with TraceHistMax 63,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 03:23:26,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 03:23:26,094 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 03:23:26,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 03:23:26 BoogieIcfgContainer [2023-12-23 03:23:26,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 03:23:26,096 INFO L158 Benchmark]: Toolchain (without parser) took 882751.21ms. Allocated memory was 189.8MB in the beginning and 280.0MB in the end (delta: 90.2MB). Free memory was 149.0MB in the beginning and 224.3MB in the end (delta: -75.3MB). Peak memory consumption was 164.1MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,096 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 03:23:26,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.50ms. Allocated memory is still 189.8MB. Free memory was 149.0MB in the beginning and 126.0MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.22ms. Allocated memory is still 189.8MB. Free memory was 126.0MB in the beginning and 121.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,097 INFO L158 Benchmark]: Boogie Preprocessor took 56.86ms. Allocated memory is still 189.8MB. Free memory was 121.8MB in the beginning and 115.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,097 INFO L158 Benchmark]: RCFGBuilder took 27521.56ms. Allocated memory was 189.8MB in the beginning and 280.0MB in the end (delta: 90.2MB). Free memory was 115.9MB in the beginning and 222.4MB in the end (delta: -106.5MB). Peak memory consumption was 40.2MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,097 INFO L158 Benchmark]: TraceAbstraction took 854764.18ms. Allocated memory is still 280.0MB. Free memory was 221.3MB in the beginning and 224.3MB in the end (delta: -3.0MB). Peak memory consumption was 144.9MB. Max. memory is 8.0GB. [2023-12-23 03:23:26,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 350.50ms. Allocated memory is still 189.8MB. Free memory was 149.0MB in the beginning and 126.0MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.22ms. Allocated memory is still 189.8MB. Free memory was 126.0MB in the beginning and 121.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.86ms. Allocated memory is still 189.8MB. Free memory was 121.8MB in the beginning and 115.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 27521.56ms. Allocated memory was 189.8MB in the beginning and 280.0MB in the end (delta: 90.2MB). Free memory was 115.9MB in the beginning and 222.4MB in the end (delta: -106.5MB). Peak memory consumption was 40.2MB. Max. memory is 8.0GB. * TraceAbstraction took 854764.18ms. Allocated memory is still 280.0MB. Free memory was 221.3MB in the beginning and 224.3MB in the end (delta: -3.0MB). Peak memory consumption was 144.9MB. 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 NwaCegarLoop was analyzing trace of length 401 with TraceHistMax 63,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 181 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 854.7s, OverallIterations: 6, TraceHistogramMax: 63, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 138.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 mSolverCounterUnknown, 1086 SdHoareTripleChecker+Valid, 137.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1065 mSDsluCounter, 2890 SdHoareTripleChecker+Invalid, 133.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1423 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 524 IncrementalHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 1467 mSDtfsCounter, 524 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2489 GetRequests, 2472 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=997occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 38 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 12.8s SatisfiabilityAnalysisTime, 27.5s InterpolantComputationTime, 2395 NumberOfCodeBlocks, 2395 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 2389 ConstructedInterpolants, 0 QuantifiedInterpolants, 8355 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3884 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 46509/46872 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