/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-54.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:53:13,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:53:13,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:53:13,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:53:13,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:53:13,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:53:13,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:53:13,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:53:13,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:53:13,509 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:53:13,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:53:13,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:53:13,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:53:13,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:53:13,511 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:53:13,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:53:13,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:53:13,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:53:13,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:53:13,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:53:13,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:53:13,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:53:13,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:53:13,514 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:53:13,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:53:13,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:53:13,515 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:53:13,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:53:13,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:53:13,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:53:13,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:53:13,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:53:13,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:53:13,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:53:13,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:53:13,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:53:13,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:53:13,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:53:13,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:53:13,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:53:13,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:53:13,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:53:13,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:53:13,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:53:13,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:53:13,521 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:53:13,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:53:13,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:53:13,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:53:13,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:53:13,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:53:13,776 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:53:13,778 INFO L431 ainManager$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-54.i [2023-12-16 11:53:14,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:53:15,223 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:53:15,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-54.i [2023-12-16 11:53:15,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c10eb22/f147e053b2584660b6645b75f7a5541a/FLAGa8e2627bf [2023-12-16 11:53:15,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c10eb22/f147e053b2584660b6645b75f7a5541a [2023-12-16 11:53:15,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:53:15,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:53:15,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:53:15,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:53:15,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:53:15,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c08dc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15, skipping insertion in model container [2023-12-16 11:53:15,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:53:15,470 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-54.i[919,932] [2023-12-16 11:53:15,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:53:15,603 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:53:15,617 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-54.i[919,932] [2023-12-16 11:53:15,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:53:15,703 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:53:15,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15 WrapperNode [2023-12-16 11:53:15,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:53:15,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:53:15,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:53:15,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:53:15,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,778 INFO L138 Inliner]: procedures = 27, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239 [2023-12-16 11:53:15,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:53:15,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:53:15,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:53:15,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:53:15,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,809 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]. [2023-12-16 11:53:15,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:53:15,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:53:15,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:53:15,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:53:15,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (1/1) ... [2023-12-16 11:53:15,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:53:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:53:15,881 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) [2023-12-16 11:53:15,905 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 [2023-12-16 11:53:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:53:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:53:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:53:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:53:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:53:15,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:53:16,019 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:53:16,022 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:53:20,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:53:20,702 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:53:20,703 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:53:20,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:53:20 BoogieIcfgContainer [2023-12-16 11:53:20,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:53:20,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:53:20,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:53:20,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:53:20,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:53:15" (1/3) ... [2023-12-16 11:53:20,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfffc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:53:20, skipping insertion in model container [2023-12-16 11:53:20,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:15" (2/3) ... [2023-12-16 11:53:20,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfffc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:53:20, skipping insertion in model container [2023-12-16 11:53:20,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:53:20" (3/3) ... [2023-12-16 11:53:20,713 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-54.i [2023-12-16 11:53:20,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:53:20,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:53:20,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:53:20,765 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;@450c883f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:53:20,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:53:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 11:53:20,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-16 11:53:20,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:20,784 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:53:20,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:20,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:20,789 INFO L85 PathProgramCache]: Analyzing trace with hash 453917975, now seen corresponding path program 1 times [2023-12-16 11:53:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109104290] [2023-12-16 11:53:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:20,802 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 [2023-12-16 11:53:20,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:20,808 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) [2023-12-16 11:53:20,809 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 [2023-12-16 11:53:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:21,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:53:21,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 2756 trivial. 0 not checked. [2023-12-16 11:53:21,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:53:21,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109104290] [2023-12-16 11:53:21,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109104290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:53:21,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:53:21,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:53:21,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857087797] [2023-12-16 11:53:21,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:53:21,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:53:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:53:21,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:53:21,564 INFO L87 Difference]: Start difference. First operand has 101 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-16 11:53:24,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:53:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:24,268 INFO L93 Difference]: Finished difference Result 199 states and 361 transitions. [2023-12-16 11:53:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:53:24,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 253 [2023-12-16 11:53:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:24,311 INFO L225 Difference]: With dead ends: 199 [2023-12-16 11:53:24,311 INFO L226 Difference]: Without dead ends: 99 [2023-12-16 11:53:24,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:53:24,317 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:24,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 11:53:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-16 11:53:24,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-16 11:53:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 11:53:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 155 transitions. [2023-12-16 11:53:24,358 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 155 transitions. Word has length 253 [2023-12-16 11:53:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:24,359 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 155 transitions. [2023-12-16 11:53:24,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-16 11:53:24,359 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 155 transitions. [2023-12-16 11:53:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-16 11:53:24,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:24,364 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:53:24,388 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 [2023-12-16 11:53:24,581 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 [2023-12-16 11:53:24,582 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:24,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1506333977, now seen corresponding path program 1 times [2023-12-16 11:53:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:24,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135969800] [2023-12-16 11:53:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:24,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:53:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:24,586 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) [2023-12-16 11:53:24,591 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 [2023-12-16 11:53:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:25,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:53:25,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2023-12-16 11:53:26,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:53:26,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135969800] [2023-12-16 11:53:26,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135969800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:53:26,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:53:26,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:53:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670710461] [2023-12-16 11:53:26,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:53:26,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:53:26,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:53:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 11:53:26,122 INFO L87 Difference]: Start difference. First operand 99 states and 155 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2023-12-16 11:53:29,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:53:31,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:53:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:31,630 INFO L93 Difference]: Finished difference Result 296 states and 464 transitions. [2023-12-16 11:53:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 11:53:31,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 253 [2023-12-16 11:53:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:31,677 INFO L225 Difference]: With dead ends: 296 [2023-12-16 11:53:31,677 INFO L226 Difference]: Without dead ends: 198 [2023-12-16 11:53:31,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:53:31,679 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 81 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:31,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 451 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 11:53:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-16 11:53:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 173. [2023-12-16 11:53:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 states have internal predecessors, (105), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-16 11:53:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 269 transitions. [2023-12-16 11:53:31,737 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 269 transitions. Word has length 253 [2023-12-16 11:53:31,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:31,741 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 269 transitions. [2023-12-16 11:53:31,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2023-12-16 11:53:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 269 transitions. [2023-12-16 11:53:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-16 11:53:31,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:31,747 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:53:31,766 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 [2023-12-16 11:53:31,965 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 [2023-12-16 11:53:31,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:31,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash -841630141, now seen corresponding path program 1 times [2023-12-16 11:53:31,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:31,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150447635] [2023-12-16 11:53:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:31,968 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 [2023-12-16 11:53:31,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:31,970 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) [2023-12-16 11:53:31,976 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 [2023-12-16 11:53:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:32,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 11:53:32,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:54:26,773 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 [2023-12-16 11:54:26,773 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:54:27,786 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:54:27,804 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 [2023-12-16 11:54:27,907 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 0 [2023-12-16 11:54:27,987 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 [2023-12-16 11:54:27,987 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 255 with TraceHistMax 41,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 11:54:27,992 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:54:27,994 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:54:27,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:54:27 BoogieIcfgContainer [2023-12-16 11:54:27,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:54:27,997 INFO L158 Benchmark]: Toolchain (without parser) took 72739.42ms. Allocated memory is still 287.3MB. Free memory was 239.8MB in the beginning and 138.4MB in the end (delta: 101.4MB). Peak memory consumption was 102.8MB. Max. memory is 8.0GB. [2023-12-16 11:54:27,997 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 184.5MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:54:27,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.83ms. Allocated memory is still 287.3MB. Free memory was 239.4MB in the beginning and 221.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 11:54:27,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.28ms. Allocated memory is still 287.3MB. Free memory was 221.6MB in the beginning and 218.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 11:54:27,998 INFO L158 Benchmark]: Boogie Preprocessor took 66.87ms. Allocated memory is still 287.3MB. Free memory was 218.8MB in the beginning and 214.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:54:27,999 INFO L158 Benchmark]: RCFGBuilder took 4856.13ms. Allocated memory is still 287.3MB. Free memory was 214.2MB in the beginning and 254.8MB in the end (delta: -40.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 11:54:27,999 INFO L158 Benchmark]: TraceAbstraction took 67291.78ms. Allocated memory is still 287.3MB. Free memory was 254.3MB in the beginning and 138.4MB in the end (delta: 115.9MB). Peak memory consumption was 116.2MB. Max. memory is 8.0GB. [2023-12-16 11:54:28,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 184.5MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.83ms. Allocated memory is still 287.3MB. Free memory was 239.4MB in the beginning and 221.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.28ms. Allocated memory is still 287.3MB. Free memory was 221.6MB in the beginning and 218.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.87ms. Allocated memory is still 287.3MB. Free memory was 218.8MB in the beginning and 214.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 4856.13ms. Allocated memory is still 287.3MB. Free memory was 214.2MB in the beginning and 254.8MB in the end (delta: -40.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 67291.78ms. Allocated memory is still 287.3MB. Free memory was 254.3MB in the beginning and 138.4MB in the end (delta: 115.9MB). Peak memory consumption was 116.2MB. 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 255 with TraceHistMax 41,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.2s, OverallIterations: 3, TraceHistogramMax: 41, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 603 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 303 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 25 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 1 NumberOfNonLiveVariables, 803 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6560/6560 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