/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:03:10,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:03:10,720 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 11:03:10,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:03:10,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:03:10,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:03:10,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:03:10,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:03:10,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:03:10,754 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:03:10,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:03:10,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:03:10,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:03:10,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:03:10,755 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:03:10,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:03:10,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:03:10,756 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:03:10,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:03:10,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:03:10,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:03:10,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:03:10,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:03:10,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:03:10,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:03:10,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:03:10,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:03:10,762 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:03:10,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:03:10,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:03:10,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:03:10,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:03:10,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:03:10,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:03:10,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:03:10,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:03:10,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:03:10,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:03:10,764 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:03:10,764 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:03:10,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:03:10,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:03:10,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:03:10,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:03:10,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:03:10,765 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:03:10,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:03:10,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:03:10,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:03:10,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:03:10,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:03:10,937 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:03:10,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-22.i [2023-12-16 11:03:12,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:03:12,244 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:03:12,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-22.i [2023-12-16 11:03:12,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779a717f3/33d978d58a0a4103b590ce4bdd477a1f/FLAG15da22d34 [2023-12-16 11:03:12,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779a717f3/33d978d58a0a4103b590ce4bdd477a1f [2023-12-16 11:03:12,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:03:12,271 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:03:12,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:03:12,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:03:12,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:03:12,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3018cfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12, skipping insertion in model container [2023-12-16 11:03:12,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:03:12,431 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-22.i[916,929] [2023-12-16 11:03:12,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:03:12,520 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:03:12,528 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-22.i[916,929] [2023-12-16 11:03:12,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:03:12,616 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:03:12,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12 WrapperNode [2023-12-16 11:03:12,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:03:12,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:03:12,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:03:12,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:03:12,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,675 INFO L138 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 395 [2023-12-16 11:03:12,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:03:12,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:03:12,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:03:12,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:03:12,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,706 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 11:03:12,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:03:12,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:03:12,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:03:12,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:03:12,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (1/1) ... [2023-12-16 11:03:12,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:03:12,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:03:12,778 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 11:03:12,814 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 11:03:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:03:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:03:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:03:12,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:03:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:03:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:03:12,913 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:03:12,914 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:03:55,511 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:03:55,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:03:55,539 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:03:55,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:03:55 BoogieIcfgContainer [2023-12-16 11:03:55,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:03:55,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:03:55,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:03:55,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:03:55,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:03:12" (1/3) ... [2023-12-16 11:03:55,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124c21b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:03:55, skipping insertion in model container [2023-12-16 11:03:55,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:03:12" (2/3) ... [2023-12-16 11:03:55,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124c21b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:03:55, skipping insertion in model container [2023-12-16 11:03:55,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:03:55" (3/3) ... [2023-12-16 11:03:55,545 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-22.i [2023-12-16 11:03:55,557 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:03:55,557 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:03:55,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:03:55,595 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;@66fe164b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:03:55,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:03:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 104 states have (on average 1.5769230769230769) internal successors, (164), 105 states have internal predecessors, (164), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 11:03:55,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-12-16 11:03:55,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:03:55,634 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:55,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:03:55,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:03:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1405949476, now seen corresponding path program 1 times [2023-12-16 11:03:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:03:55,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464671230] [2023-12-16 11:03:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:03:55,653 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 11:03:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:03:55,655 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 11:03:55,656 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 11:03:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:03:57,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:03:57,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:03:57,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 2372 proven. 0 refuted. 0 times theorem prover too weak. 6472 trivial. 0 not checked. [2023-12-16 11:03:57,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:03:57,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:03:57,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464671230] [2023-12-16 11:03:57,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464671230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:03:57,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:03:57,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:03:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468240726] [2023-12-16 11:03:57,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:03:57,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:03:57,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:03:58,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:03:58,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:03:58,003 INFO L87 Difference]: Start difference. First operand has 174 states, 104 states have (on average 1.5769230769230769) internal successors, (164), 105 states have internal predecessors, (164), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-16 11:04:02,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:04:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:04:02,726 INFO L93 Difference]: Finished difference Result 345 states and 661 transitions. [2023-12-16 11:04:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:04:02,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 411 [2023-12-16 11:04:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:04:02,999 INFO L225 Difference]: With dead ends: 345 [2023-12-16 11:04:02,999 INFO L226 Difference]: Without dead ends: 172 [2023-12-16 11:04:03,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 410 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 11:04:03,012 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:04:03,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 11:04:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-16 11:04:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-12-16 11:04:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 11:04:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 290 transitions. [2023-12-16 11:04:03,115 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 290 transitions. Word has length 411 [2023-12-16 11:04:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:04:03,116 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 290 transitions. [2023-12-16 11:04:03,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-16 11:04:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 290 transitions. [2023-12-16 11:04:03,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-12-16 11:04:03,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:04:03,124 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:03,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 11:04:03,349 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 11:04:03,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:04:03,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:04:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1901972508, now seen corresponding path program 1 times [2023-12-16 11:04:03,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:04:03,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663723671] [2023-12-16 11:04:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:04:03,352 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 11:04:03,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:04:03,353 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 11:04:03,381 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 11:04:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:04:05,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:04:05,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:04:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2023-12-16 11:04:06,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:04:06,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:04:06,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663723671] [2023-12-16 11:04:06,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663723671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:04:06,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:04:06,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:04:06,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898857042] [2023-12-16 11:04:06,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:04:06,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:04:06,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:04:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:04:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:04:06,229 INFO L87 Difference]: Start difference. First operand 172 states and 290 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-16 11:04:11,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:04:15,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:04:19,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:04:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:04:19,531 INFO L93 Difference]: Finished difference Result 445 states and 752 transitions. [2023-12-16 11:04:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:04:19,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 411 [2023-12-16 11:04:19,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:04:19,536 INFO L225 Difference]: With dead ends: 445 [2023-12-16 11:04:19,536 INFO L226 Difference]: Without dead ends: 274 [2023-12-16 11:04:19,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:04:19,538 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 153 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:04:19,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 651 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-12-16 11:04:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-16 11:04:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2023-12-16 11:04:19,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 178 states have (on average 1.5617977528089888) internal successors, (278), 179 states have internal predecessors, (278), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-16 11:04:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 458 transitions. [2023-12-16 11:04:19,578 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 458 transitions. Word has length 411 [2023-12-16 11:04:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:04:19,581 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 458 transitions. [2023-12-16 11:04:19,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) [2023-12-16 11:04:19,583 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 458 transitions. [2023-12-16 11:04:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-16 11:04:19,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:04:19,588 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:19,636 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 11:04:19,804 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 11:04:19,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:04:19,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:04:19,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1076320704, now seen corresponding path program 1 times [2023-12-16 11:04:19,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:04:19,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18486887] [2023-12-16 11:04:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:04:19,806 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 11:04:19,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:04:19,807 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 11:04:19,812 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 11:04:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:04:22,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:04:22,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:04:31,472 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 11:04:31,473 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 11:04:32,489 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:04:32,574 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 11:04:32,680 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 11:04:32,691 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 11:04:32,691 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 413 with TraceHistMax 67,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 11:04:32,694 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:04:32,696 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:04:32,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:04:32 BoogieIcfgContainer [2023-12-16 11:04:32,698 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:04:32,698 INFO L158 Benchmark]: Toolchain (without parser) took 80427.04ms. Allocated memory is still 232.8MB. Free memory was 189.9MB in the beginning and 142.7MB in the end (delta: 47.2MB). Peak memory consumption was 48.1MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,698 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:04:32,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.72ms. Allocated memory is still 232.8MB. Free memory was 189.7MB in the beginning and 167.9MB in the end (delta: 21.9MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.32ms. Allocated memory is still 232.8MB. Free memory was 167.9MB in the beginning and 164.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,699 INFO L158 Benchmark]: Boogie Preprocessor took 53.68ms. Allocated memory is still 232.8MB. Free memory was 164.0MB in the beginning and 158.3MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,699 INFO L158 Benchmark]: RCFGBuilder took 42808.84ms. Allocated memory is still 232.8MB. Free memory was 158.3MB in the beginning and 164.2MB in the end (delta: -6.0MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,699 INFO L158 Benchmark]: TraceAbstraction took 37157.18ms. Allocated memory is still 232.8MB. Free memory was 163.2MB in the beginning and 142.7MB in the end (delta: 20.5MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2023-12-16 11:04:32,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 343.72ms. Allocated memory is still 232.8MB. Free memory was 189.7MB in the beginning and 167.9MB in the end (delta: 21.9MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.32ms. Allocated memory is still 232.8MB. Free memory was 167.9MB in the beginning and 164.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.68ms. Allocated memory is still 232.8MB. Free memory was 164.0MB in the beginning and 158.3MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 42808.84ms. Allocated memory is still 232.8MB. Free memory was 158.3MB in the beginning and 164.2MB in the end (delta: -6.0MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. * TraceAbstraction took 37157.18ms. Allocated memory is still 232.8MB. Free memory was 163.2MB in the beginning and 142.7MB in the end (delta: 20.5MB). Peak memory consumption was 20.5MB. 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 413 with TraceHistMax 67,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 174 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.1s, OverallIterations: 3, TraceHistogramMax: 67, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 938 SdHoareTripleChecker+Invalid, 17.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 664 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 820 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 820 ConstructedInterpolants, 0 QuantifiedInterpolants, 852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1309 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 17688/17688 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