/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_fillercodestructure_filler-pe-cn_file-93.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 09:09:31,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 09:09:31,211 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 09:09:31,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 09:09:31,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 09:09:31,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 09:09:31,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 09:09:31,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 09:09:31,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 09:09:31,245 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 09:09:31,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 09:09:31,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 09:09:31,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 09:09:31,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 09:09:31,247 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 09:09:31,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 09:09:31,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 09:09:31,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 09:09:31,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 09:09:31,249 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 09:09:31,250 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 09:09:31,250 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 09:09:31,250 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 09:09:31,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 09:09:31,250 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 09:09:31,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 09:09:31,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 09:09:31,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 09:09:31,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 09:09:31,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:09:31,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 09:09:31,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 09:09:31,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 09:09:31,253 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 09:09:31,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 09:09:31,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 09:09:31,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 09:09:31,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 09:09:31,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 09:09:31,469 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 09:09:31,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-93.i [2023-12-23 09:09:32,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 09:09:32,964 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 09:09:32,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-93.i [2023-12-23 09:09:32,974 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc9f75f8b/0dd0f17ef9524a87a3f2eaf3c9536035/FLAG0deaaa145 [2023-12-23 09:09:32,987 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc9f75f8b/0dd0f17ef9524a87a3f2eaf3c9536035 [2023-12-23 09:09:32,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 09:09:32,990 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 09:09:32,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 09:09:32,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 09:09:33,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 09:09:33,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:09:32" (1/1) ... [2023-12-23 09:09:33,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2c5f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33, skipping insertion in model container [2023-12-23 09:09:33,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:09:32" (1/1) ... [2023-12-23 09:09:33,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 09:09:33,170 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_fillercodestructure_filler-pe-cn_file-93.i[919,932] [2023-12-23 09:09:33,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:09:33,256 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 09:09:33,268 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_fillercodestructure_filler-pe-cn_file-93.i[919,932] [2023-12-23 09:09:33,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:09:33,329 INFO L206 MainTranslator]: Completed translation [2023-12-23 09:09:33,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33 WrapperNode [2023-12-23 09:09:33,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 09:09:33,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 09:09:33,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 09:09:33,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 09:09:33,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,387 INFO L138 Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 294 [2023-12-23 09:09:33,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 09:09:33,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 09:09:33,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 09:09:33,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 09:09:33,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,435 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 09:09:33,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 09:09:33,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 09:09:33,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 09:09:33,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 09:09:33,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (1/1) ... [2023-12-23 09:09:33,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:09:33,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 09:09:33,515 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 09:09:33,532 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 09:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 09:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 09:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 09:09:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 09:09:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 09:09:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 09:09:33,644 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 09:09:33,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 09:09:49,437 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 09:09:49,527 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 09:09:49,527 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 09:09:49,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:09:49 BoogieIcfgContainer [2023-12-23 09:09:49,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 09:09:49,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 09:09:49,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 09:09:49,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 09:09:49,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:09:32" (1/3) ... [2023-12-23 09:09:49,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb6f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:09:49, skipping insertion in model container [2023-12-23 09:09:49,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:09:33" (2/3) ... [2023-12-23 09:09:49,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb6f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:09:49, skipping insertion in model container [2023-12-23 09:09:49,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:09:49" (3/3) ... [2023-12-23 09:09:49,533 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-93.i [2023-12-23 09:09:49,547 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 09:09:49,548 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 09:09:49,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 09:09:49,592 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;@1dbdfa37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 09:09:49,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 09:09:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 70 states have internal predecessors, (94), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 09:09:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-23 09:09:49,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:09:49,626 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:09:49,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:09:49,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:09:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1508354082, now seen corresponding path program 1 times [2023-12-23 09:09:49,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:09:49,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663181348] [2023-12-23 09:09:49,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:09:49,646 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 09:09:49,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:09:49,664 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 09:09:49,705 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 09:09:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:09:50,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 09:09:50,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:09:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 2274 proven. 0 refuted. 0 times theorem prover too weak. 4338 trivial. 0 not checked. [2023-12-23 09:09:50,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:09:50,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:09:50,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663181348] [2023-12-23 09:09:50,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663181348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:09:50,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:09:50,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 09:09:50,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223132792] [2023-12-23 09:09:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:09:50,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 09:09:50,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:09:50,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 09:09:50,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 09:09:50,362 INFO L87 Difference]: Start difference. First operand has 130 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 70 states have internal predecessors, (94), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-23 09:09:54,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:09:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:09:54,435 INFO L93 Difference]: Finished difference Result 257 states and 476 transitions. [2023-12-23 09:09:54,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 09:09:54,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 346 [2023-12-23 09:09:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:09:54,509 INFO L225 Difference]: With dead ends: 257 [2023-12-23 09:09:54,509 INFO L226 Difference]: Without dead ends: 128 [2023-12-23 09:09:54,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 345 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 09:09:54,526 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-23 09:09:54,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-23 09:09:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-23 09:09:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-23 09:09:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 68 states have internal predecessors, (89), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 09:09:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 205 transitions. [2023-12-23 09:09:54,576 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 205 transitions. Word has length 346 [2023-12-23 09:09:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:09:54,576 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 205 transitions. [2023-12-23 09:09:54,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-23 09:09:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 205 transitions. [2023-12-23 09:09:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-23 09:09:54,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:09:54,582 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:09:54,597 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 09:09:54,782 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 09:09:54,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:09:54,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:09:54,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1342930018, now seen corresponding path program 1 times [2023-12-23 09:09:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:09:54,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945225107] [2023-12-23 09:09:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:09:54,785 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 09:09:54,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:09:54,787 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 09:09:54,854 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 09:09:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:09:55,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 09:09:55,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:09:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-23 09:09:55,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:09:55,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:09:55,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945225107] [2023-12-23 09:09:55,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945225107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:09:55,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:09:55,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 09:09:55,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840183687] [2023-12-23 09:09:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:09:55,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 09:09:55,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:09:55,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 09:09:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 09:09:55,530 INFO L87 Difference]: Start difference. First operand 128 states and 205 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-23 09:10:00,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:10:03,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:10:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:10:03,876 INFO L93 Difference]: Finished difference Result 296 states and 471 transitions. [2023-12-23 09:10:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 09:10:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 346 [2023-12-23 09:10:03,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:10:03,890 INFO L225 Difference]: With dead ends: 296 [2023-12-23 09:10:03,890 INFO L226 Difference]: Without dead ends: 169 [2023-12-23 09:10:03,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 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 09:10:03,906 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 56 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-23 09:10:03,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 394 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-12-23 09:10:03,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-23 09:10:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2023-12-23 09:10:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 102 states have internal predecessors, (138), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-23 09:10:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 262 transitions. [2023-12-23 09:10:03,966 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 262 transitions. Word has length 346 [2023-12-23 09:10:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:10:03,967 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 262 transitions. [2023-12-23 09:10:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-23 09:10:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 262 transitions. [2023-12-23 09:10:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 09:10:03,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:10:03,997 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:10:04,011 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 09:10:04,209 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 09:10:04,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:10:04,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:10:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -252231023, now seen corresponding path program 1 times [2023-12-23 09:10:04,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:10:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67559] [2023-12-23 09:10:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:10:04,211 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 09:10:04,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:10:04,213 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 09:10:04,230 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 09:10:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:10:04,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 09:10:04,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:10:04,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-23 09:10:04,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:10:04,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:10:04,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67559] [2023-12-23 09:10:04,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:10:04,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:10:04,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 09:10:04,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182910488] [2023-12-23 09:10:04,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:10:04,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 09:10:04,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:10:04,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 09:10:04,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 09:10:04,973 INFO L87 Difference]: Start difference. First operand 166 states and 262 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-23 09:10:09,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:10:12,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:10:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:10:12,317 INFO L93 Difference]: Finished difference Result 338 states and 528 transitions. [2023-12-23 09:10:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 09:10:12,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 347 [2023-12-23 09:10:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:10:12,321 INFO L225 Difference]: With dead ends: 338 [2023-12-23 09:10:12,322 INFO L226 Difference]: Without dead ends: 173 [2023-12-23 09:10:12,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 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 09:10:12,323 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 59 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-23 09:10:12,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 402 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2023-12-23 09:10:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-23 09:10:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 139. [2023-12-23 09:10:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 78 states have internal predecessors, (100), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 09:10:12,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions. [2023-12-23 09:10:12,336 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 347 [2023-12-23 09:10:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:10:12,340 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 216 transitions. [2023-12-23 09:10:12,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-23 09:10:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions. [2023-12-23 09:10:12,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 09:10:12,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:10:12,344 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:10:12,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-23 09:10:12,554 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 09:10:12,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:10:12,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:10:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1741043823, now seen corresponding path program 1 times [2023-12-23 09:10:12,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:10:12,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653916587] [2023-12-23 09:10:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:10:12,556 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 09:10:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:10:12,557 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 09:10:12,559 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 09:10:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:10:13,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-23 09:10:13,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:13:52,102 WARN L293 SmtUtils]: Spent 36.02s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:16:18,137 WARN L293 SmtUtils]: Spent 43.34s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:18:51,421 WARN L293 SmtUtils]: Spent 37.56s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:19:24,317 WARN L293 SmtUtils]: Spent 5.35s 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 09:19:41,617 WARN L293 SmtUtils]: Spent 6.01s 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 09:21:36,909 WARN L293 SmtUtils]: Spent 52.76s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 09:24:17,595 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 09:24:17,603 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 09:24:18,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 09:24:18,796 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 09:24:18,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 09:24:18,874 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 348 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-23 09:24:18,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-23 09:24:18,879 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 09:24:18,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:24:18 BoogieIcfgContainer [2023-12-23 09:24:18,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 09:24:18,881 INFO L158 Benchmark]: Toolchain (without parser) took 885891.07ms. Allocated memory is still 269.5MB. Free memory was 215.1MB in the beginning and 199.9MB in the end (delta: 15.2MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,881 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 175.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 09:24:18,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.31ms. Allocated memory is still 269.5MB. Free memory was 215.1MB in the beginning and 197.1MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.85ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 194.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,882 INFO L158 Benchmark]: Boogie Preprocessor took 76.97ms. Allocated memory is still 269.5MB. Free memory was 194.1MB in the beginning and 189.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,882 INFO L158 Benchmark]: RCFGBuilder took 16062.33ms. Allocated memory is still 269.5MB. Free memory was 189.4MB in the beginning and 231.6MB in the end (delta: -42.2MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,883 INFO L158 Benchmark]: TraceAbstraction took 869351.99ms. Allocated memory is still 269.5MB. Free memory was 231.1MB in the beginning and 199.9MB in the end (delta: 31.2MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2023-12-23 09:24:18,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-23 09:24:18,885 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 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 175.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.31ms. Allocated memory is still 269.5MB. Free memory was 215.1MB in the beginning and 197.1MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.85ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 194.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.97ms. Allocated memory is still 269.5MB. Free memory was 194.1MB in the beginning and 189.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 16062.33ms. Allocated memory is still 269.5MB. Free memory was 189.4MB in the beginning and 231.6MB in the end (delta: -42.2MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. * TraceAbstraction took 869351.99ms. Allocated memory is still 269.5MB. Free memory was 231.1MB in the beginning and 199.9MB in the end (delta: 31.2MB). Peak memory consumption was 31.7MB. 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 348 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 869.3s, OverallIterations: 4, TraceHistogramMax: 58, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 19.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 998 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 378 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 620 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1036 GetRequests, 1034 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=2, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 37 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1039 NumberOfCodeBlocks, 1039 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1036 ConstructedInterpolants, 0 QuantifiedInterpolants, 1050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1626 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 19836/19836 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