/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-pr-cn_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:21:48,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:21:48,815 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 12:21:48,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:21:48,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:21:48,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:21:48,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:21:48,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:21:48,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:21:48,851 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:21:48,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:21:48,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:21:48,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:21:48,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:21:48,853 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:21:48,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:21:48,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:21:48,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:21:48,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:21:48,855 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:21:48,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:21:48,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:21:48,856 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:21:48,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:21:48,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:21:48,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:21:48,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:21:48,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:21:48,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:21:48,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:21:48,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:21:48,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:21:48,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:21:48,858 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:21:48,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:21:48,859 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:21:48,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:21:49,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:21:49,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:21:49,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:21:49,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:21:49,057 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:21:49,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-59.i [2023-12-16 12:21:50,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:21:50,196 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:21:50,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-59.i [2023-12-16 12:21:50,205 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2753c25b4/f432f87f8e104cf9be07dd15080da7f5/FLAG7b2af415f [2023-12-16 12:21:50,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2753c25b4/f432f87f8e104cf9be07dd15080da7f5 [2023-12-16 12:21:50,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:21:50,217 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:21:50,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:21:50,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:21:50,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:21:50,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebdf096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50, skipping insertion in model container [2023-12-16 12:21:50,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:21:50,356 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-pr-cn_file-59.i[919,932] [2023-12-16 12:21:50,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:21:50,422 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:21:50,432 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-pr-cn_file-59.i[919,932] [2023-12-16 12:21:50,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:21:50,476 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:21:50,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50 WrapperNode [2023-12-16 12:21:50,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:21:50,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:21:50,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:21:50,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:21:50,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,509 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 221 [2023-12-16 12:21:50,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:21:50,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:21:50,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:21:50,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:21:50,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,522 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,532 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 12:21:50,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:21:50,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:21:50,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:21:50,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:21:50,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (1/1) ... [2023-12-16 12:21:50,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:21:50,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:21:50,605 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 12:21:50,628 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 12:21:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:21:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:21:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:21:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:21:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:21:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:21:50,718 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:21:50,719 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:21:51,475 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:21:51,513 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:21:51,513 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:21:51,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:21:51 BoogieIcfgContainer [2023-12-16 12:21:51,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:21:51,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:21:51,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:21:51,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:21:51,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:21:50" (1/3) ... [2023-12-16 12:21:51,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555969fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:21:51, skipping insertion in model container [2023-12-16 12:21:51,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:21:50" (2/3) ... [2023-12-16 12:21:51,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555969fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:21:51, skipping insertion in model container [2023-12-16 12:21:51,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:21:51" (3/3) ... [2023-12-16 12:21:51,526 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-59.i [2023-12-16 12:21:51,538 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:21:51,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:21:51,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:21:51,599 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;@30bc2612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:21:51,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:21:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 12:21:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 12:21:51,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:21:51,618 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:51,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:21:51,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:21:51,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1393461381, now seen corresponding path program 1 times [2023-12-16 12:21:51,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:21:51,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487848358] [2023-12-16 12:21:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:21:51,632 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 12:21:51,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:21:51,637 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 12:21:51,641 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 12:21:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:21:51,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:21:52,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:21:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 12:21:52,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:21:52,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:21:52,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487848358] [2023-12-16 12:21:52,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487848358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:21:52,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:21:52,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:21:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058033095] [2023-12-16 12:21:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:21:52,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:21:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:21:52,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:21:52,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:21:52,416 INFO L87 Difference]: Start difference. First operand has 92 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 12:21:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:21:53,171 INFO L93 Difference]: Finished difference Result 271 states and 514 transitions. [2023-12-16 12:21:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:21:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 210 [2023-12-16 12:21:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:21:53,194 INFO L225 Difference]: With dead ends: 271 [2023-12-16 12:21:53,195 INFO L226 Difference]: Without dead ends: 180 [2023-12-16 12:21:53,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 207 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 12:21:53,200 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 94 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:21:53,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 416 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 12:21:53,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-16 12:21:53,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 149. [2023-12-16 12:21:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 78 states have internal predecessors, (99), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 12:21:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 235 transitions. [2023-12-16 12:21:53,254 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 235 transitions. Word has length 210 [2023-12-16 12:21:53,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:21:53,255 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 235 transitions. [2023-12-16 12:21:53,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 12:21:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 235 transitions. [2023-12-16 12:21:53,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 12:21:53,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:21:53,258 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:53,284 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 12:21:53,469 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 12:21:53,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:21:53,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:21:53,470 INFO L85 PathProgramCache]: Analyzing trace with hash 166489094, now seen corresponding path program 1 times [2023-12-16 12:21:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:21:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921786283] [2023-12-16 12:21:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:21:53,472 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 12:21:53,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:21:53,473 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 12:21:53,474 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 12:21:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:21:53,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:21:53,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:21:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1113 proven. 39 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2023-12-16 12:21:54,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:21:54,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:21:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921786283] [2023-12-16 12:21:54,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921786283] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:21:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [795089305] [2023-12-16 12:21:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:21:54,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:21:54,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:21:54,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:21:54,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 12:21:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:21:55,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:21:55,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:21:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 12:21:55,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:21:55,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [795089305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:21:55,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:21:55,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 12:21:55,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486003819] [2023-12-16 12:21:55,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:21:55,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:21:55,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:21:55,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:21:55,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 12:21:55,870 INFO L87 Difference]: Start difference. First operand 149 states and 235 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 12:21:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:21:57,019 INFO L93 Difference]: Finished difference Result 336 states and 530 transitions. [2023-12-16 12:21:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:21:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211 [2023-12-16 12:21:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:21:57,038 INFO L225 Difference]: With dead ends: 336 [2023-12-16 12:21:57,038 INFO L226 Difference]: Without dead ends: 247 [2023-12-16 12:21:57,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 12:21:57,040 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 107 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:21:57,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 413 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 12:21:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-16 12:21:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 236. [2023-12-16 12:21:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 130 states have (on average 1.3076923076923077) internal successors, (170), 130 states have internal predecessors, (170), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-16 12:21:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 374 transitions. [2023-12-16 12:21:57,084 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 374 transitions. Word has length 211 [2023-12-16 12:21:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:21:57,085 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 374 transitions. [2023-12-16 12:21:57,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 12:21:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 374 transitions. [2023-12-16 12:21:57,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 12:21:57,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:21:57,087 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:57,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:21:57,308 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 12:21:57,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 12:21:57,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:21:57,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:21:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1781301405, now seen corresponding path program 1 times [2023-12-16 12:21:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:21:57,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104663900] [2023-12-16 12:21:57,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:21:57,499 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 12:21:57,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:21:57,500 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) [2023-12-16 12:21:57,524 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 [2023-12-16 12:21:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:21:57,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:21:57,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:21:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1113 proven. 39 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2023-12-16 12:21:58,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:21:58,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:21:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104663900] [2023-12-16 12:21:58,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104663900] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:21:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1490348589] [2023-12-16 12:21:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:21:58,595 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:21:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:21:58,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:21:58,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 12:21:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:21:59,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:21:59,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:21:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1113 proven. 39 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2023-12-16 12:21:59,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:22:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1490348589] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:22:00,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:22:00,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-16 12:22:00,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881907972] [2023-12-16 12:22:00,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:22:00,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 12:22:00,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:22:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 12:22:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:22:00,087 INFO L87 Difference]: Start difference. First operand 236 states and 374 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 12:22:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:22:00,959 INFO L93 Difference]: Finished difference Result 612 states and 957 transitions. [2023-12-16 12:22:00,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 12:22:00,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 212 [2023-12-16 12:22:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:22:00,966 INFO L225 Difference]: With dead ends: 612 [2023-12-16 12:22:00,967 INFO L226 Difference]: Without dead ends: 436 [2023-12-16 12:22:00,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-16 12:22:00,969 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 127 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 12:22:00,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 386 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 12:22:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-16 12:22:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 422. [2023-12-16 12:22:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 243 states have internal predecessors, (319), 170 states have call successors, (170), 8 states have call predecessors, (170), 8 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-12-16 12:22:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 659 transitions. [2023-12-16 12:22:01,012 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 659 transitions. Word has length 212 [2023-12-16 12:22:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:22:01,013 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 659 transitions. [2023-12-16 12:22:01,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 12:22:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 659 transitions. [2023-12-16 12:22:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 12:22:01,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:22:01,017 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:22:01,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 12:22:01,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:22:01,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:22:01,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:22:01,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:22:01,438 INFO L85 PathProgramCache]: Analyzing trace with hash 612405880, now seen corresponding path program 1 times [2023-12-16 12:22:01,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:22:01,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145220591] [2023-12-16 12:22:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:22:01,439 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 12:22:01,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:22:01,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:22:01,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 12:22:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:22:01,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 12:22:01,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:22:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 503 proven. 330 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2023-12-16 12:22:07,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 12:23:07,169 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 12:23:07,183 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:23:08,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 12:23:08,370 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 [2023-12-16 12:23:08,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 12:23:08,413 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:23:08,413 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 214 with TraceHistMax 34,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-16 12:23:08,416 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 12:23:08,417 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:23:08,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:23:08 BoogieIcfgContainer [2023-12-16 12:23:08,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:23:08,419 INFO L158 Benchmark]: Toolchain (without parser) took 78202.06ms. Allocated memory was 270.5MB in the beginning and 325.1MB in the end (delta: 54.5MB). Free memory was 231.4MB in the beginning and 290.2MB in the end (delta: -58.9MB). Peak memory consumption was 181.4MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,420 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 178.3MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:23:08,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.64ms. Allocated memory is still 270.5MB. Free memory was 231.4MB in the beginning and 214.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.74ms. Allocated memory is still 270.5MB. Free memory was 214.8MB in the beginning and 212.0MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,420 INFO L158 Benchmark]: Boogie Preprocessor took 39.94ms. Allocated memory is still 270.5MB. Free memory was 212.0MB in the beginning and 208.2MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,421 INFO L158 Benchmark]: RCFGBuilder took 963.29ms. Allocated memory is still 270.5MB. Free memory was 208.2MB in the beginning and 180.6MB in the end (delta: 27.6MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,421 INFO L158 Benchmark]: TraceAbstraction took 76903.70ms. Allocated memory was 270.5MB in the beginning and 325.1MB in the end (delta: 54.5MB). Free memory was 179.9MB in the beginning and 290.2MB in the end (delta: -110.4MB). Peak memory consumption was 130.0MB. Max. memory is 8.0GB. [2023-12-16 12:23:08,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 178.3MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 256.64ms. Allocated memory is still 270.5MB. Free memory was 231.4MB in the beginning and 214.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.74ms. Allocated memory is still 270.5MB. Free memory was 214.8MB in the beginning and 212.0MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.94ms. Allocated memory is still 270.5MB. Free memory was 212.0MB in the beginning and 208.2MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 963.29ms. Allocated memory is still 270.5MB. Free memory was 208.2MB in the beginning and 180.6MB in the end (delta: 27.6MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 76903.70ms. Allocated memory was 270.5MB in the beginning and 325.1MB in the end (delta: 54.5MB). Free memory was 179.9MB in the beginning and 290.2MB in the end (delta: -110.4MB). Peak memory consumption was 130.0MB. 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 214 with TraceHistMax 34,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.9s, OverallIterations: 4, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 346 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 1215 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 801 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 414 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1125 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422occurred in iteration=3, InterpolantAutomatonStates: 18, 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, 56 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1056 NumberOfCodeBlocks, 1056 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1051 ConstructedInterpolants, 0 QuantifiedInterpolants, 5368 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1741 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 11103/11220 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