/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_operatoramount_amount250_file-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 07:33:02,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 07:33:02,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 07:33:02,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 07:33:02,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 07:33:02,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 07:33:02,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 07:33:02,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 07:33:02,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 07:33:02,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 07:33:02,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 07:33:02,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 07:33:02,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 07:33:02,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 07:33:02,770 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 07:33:02,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 07:33:02,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 07:33:02,771 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 07:33:02,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 07:33:02,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 07:33:02,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 07:33:02,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 07:33:02,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 07:33:02,772 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 07:33:02,773 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 07:33:02,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 07:33:02,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 07:33:02,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 07:33:02,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 07:33:02,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 07:33:02,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 07:33:02,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 07:33:02,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 07:33:02,775 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 07:33:02,775 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 07:33:02,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 07:33:02,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 07:33:02,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 07:33:02,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 07:33:02,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 07:33:02,777 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 07:33:02,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 07:33:02,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 07:33:02,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 07:33:02,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 07:33:02,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 07:33:02,993 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 07:33:02,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-82.i [2023-12-24 07:33:04,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 07:33:04,300 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 07:33:04,300 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-82.i [2023-12-24 07:33:04,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5eae1f5/81429483077e482bb1fb44c8b39f52db/FLAGa05131bdb [2023-12-24 07:33:04,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5eae1f5/81429483077e482bb1fb44c8b39f52db [2023-12-24 07:33:04,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 07:33:04,337 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 07:33:04,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 07:33:04,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 07:33:04,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 07:33:04,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da713f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04, skipping insertion in model container [2023-12-24 07:33:04,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 07:33:04,504 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_operatoramount_amount250_file-82.i[916,929] [2023-12-24 07:33:04,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 07:33:04,633 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 07:33:04,647 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_operatoramount_amount250_file-82.i[916,929] [2023-12-24 07:33:04,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 07:33:04,721 INFO L206 MainTranslator]: Completed translation [2023-12-24 07:33:04,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04 WrapperNode [2023-12-24 07:33:04,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 07:33:04,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 07:33:04,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 07:33:04,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 07:33:04,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,776 INFO L138 Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 353 [2023-12-24 07:33:04,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 07:33:04,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 07:33:04,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 07:33:04,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 07:33:04,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,811 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]. [2023-12-24 07:33:04,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 07:33:04,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 07:33:04,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 07:33:04,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 07:33:04,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (1/1) ... [2023-12-24 07:33:04,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 07:33:04,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 07:33:04,926 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) [2023-12-24 07:33:04,956 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 [2023-12-24 07:33:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 07:33:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 07:33:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 07:33:04,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 07:33:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 07:33:04,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 07:33:05,076 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 07:33:05,077 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 07:34:06,924 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 07:34:06,974 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 07:34:06,974 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 07:34:06,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:34:06 BoogieIcfgContainer [2023-12-24 07:34:06,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 07:34:06,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 07:34:06,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 07:34:06,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 07:34:06,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:33:04" (1/3) ... [2023-12-24 07:34:06,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb68c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:34:06, skipping insertion in model container [2023-12-24 07:34:06,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:33:04" (2/3) ... [2023-12-24 07:34:06,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb68c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:34:06, skipping insertion in model container [2023-12-24 07:34:06,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:34:06" (3/3) ... [2023-12-24 07:34:06,981 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-82.i [2023-12-24 07:34:06,993 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 07:34:06,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 07:34:07,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 07:34:07,047 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;@3a3e9af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 07:34:07,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 07:34:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 90 states have internal predecessors, (136), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-24 07:34:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-24 07:34:07,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:34:07,073 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:34:07,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:34:07,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:34:07,086 INFO L85 PathProgramCache]: Analyzing trace with hash 974583599, now seen corresponding path program 1 times [2023-12-24 07:34:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:34:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939893482] [2023-12-24 07:34:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:34:07,099 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 [2023-12-24 07:34:07,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:34:07,101 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) [2023-12-24 07:34:07,104 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 [2023-12-24 07:34:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:34:09,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 07:34:09,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:34:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1770 proven. 0 refuted. 0 times theorem prover too weak. 3130 trivial. 0 not checked. [2023-12-24 07:34:10,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 07:34:10,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:34:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939893482] [2023-12-24 07:34:10,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939893482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 07:34:10,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 07:34:10,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 07:34:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671056637] [2023-12-24 07:34:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 07:34:10,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 07:34:10,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:34:10,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 07:34:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 07:34:10,085 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 90 states have internal predecessors, (136), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-24 07:34:17,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:34:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:34:17,569 INFO L93 Difference]: Finished difference Result 281 states and 520 transitions. [2023-12-24 07:34:18,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 07:34:18,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 315 [2023-12-24 07:34:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:34:18,836 INFO L225 Difference]: With dead ends: 281 [2023-12-24 07:34:18,836 INFO L226 Difference]: Without dead ends: 140 [2023-12-24 07:34:18,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 07:34:18,842 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-24 07:34:18,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2023-12-24 07:34:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-24 07:34:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-24 07:34:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 88 states have internal predecessors, (129), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-24 07:34:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 229 transitions. [2023-12-24 07:34:18,885 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 229 transitions. Word has length 315 [2023-12-24 07:34:18,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:34:18,885 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 229 transitions. [2023-12-24 07:34:18,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-24 07:34:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 229 transitions. [2023-12-24 07:34:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-24 07:34:18,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:34:18,890 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:34:18,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 07:34:19,090 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 [2023-12-24 07:34:19,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:34:19,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:34:19,092 INFO L85 PathProgramCache]: Analyzing trace with hash -168016205, now seen corresponding path program 1 times [2023-12-24 07:34:19,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:34:19,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066731599] [2023-12-24 07:34:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:34:19,093 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 [2023-12-24 07:34:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:34:19,094 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) [2023-12-24 07:34:19,098 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 [2023-12-24 07:34:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:34:22,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 07:34:22,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:34:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2427 proven. 60 refuted. 0 times theorem prover too weak. 2413 trivial. 0 not checked. [2023-12-24 07:34:34,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:34:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 87 proven. 60 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-24 07:34:42,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:34:42,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066731599] [2023-12-24 07:34:42,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066731599] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 07:34:42,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 07:34:42,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-24 07:34:42,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326702691] [2023-12-24 07:34:42,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 07:34:42,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 07:34:42,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:34:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 07:34:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-24 07:34:42,115 INFO L87 Difference]: Start difference. First operand 140 states and 229 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-24 07:35:04,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:08,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:12,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:16,953 WARN L539 Checker$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 [] [2023-12-24 07:35:20,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:25,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:29,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:30,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:35:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:35:44,596 INFO L93 Difference]: Finished difference Result 432 states and 696 transitions. [2023-12-24 07:35:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-24 07:35:44,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 315 [2023-12-24 07:35:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:35:44,600 INFO L225 Difference]: With dead ends: 432 [2023-12-24 07:35:44,600 INFO L226 Difference]: Without dead ends: 293 [2023-12-24 07:35:44,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 622 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-24 07:35:44,602 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 338 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 164 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.6s IncrementalHoareTripleChecker+Time [2023-12-24 07:35:44,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 895 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 633 Invalid, 7 Unknown, 0 Unchecked, 58.6s Time] [2023-12-24 07:35:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-24 07:35:44,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 283. [2023-12-24 07:35:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 178 states have (on average 1.404494382022472) internal successors, (250), 178 states have internal predecessors, (250), 100 states have call successors, (100), 4 states have call predecessors, (100), 4 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-24 07:35:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 450 transitions. [2023-12-24 07:35:44,658 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 450 transitions. Word has length 315 [2023-12-24 07:35:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:35:44,660 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 450 transitions. [2023-12-24 07:35:44,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-24 07:35:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 450 transitions. [2023-12-24 07:35:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-24 07:35:44,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:35:44,665 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:35:44,728 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 [2023-12-24 07:35:44,872 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 [2023-12-24 07:35:44,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:35:44,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:35:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1606991157, now seen corresponding path program 1 times [2023-12-24 07:35:44,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:35:44,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983805154] [2023-12-24 07:35:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:35:44,874 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 [2023-12-24 07:35:44,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:35:44,875 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) [2023-12-24 07:35:44,876 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 [2023-12-24 07:35:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:35:56,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 104 conjunts are in the unsatisfiable core [2023-12-24 07:35:56,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:43:35,576 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 101 [2023-12-24 07:43:35,576 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-24 07:43:35,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:43:35,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983805154] [2023-12-24 07:43:35,578 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-12-24 07:43:35,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 07:43:35,779 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 [2023-12-24 07:43:35,780 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 57 more [2023-12-24 07:43:35,783 INFO L158 Benchmark]: Toolchain (without parser) took 631446.40ms. Allocated memory is still 286.3MB. Free memory was 241.2MB in the beginning and 83.5MB in the end (delta: 157.7MB). Peak memory consumption was 158.5MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,783 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 186.6MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 07:43:35,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.73ms. Allocated memory is still 286.3MB. Free memory was 240.9MB in the beginning and 216.8MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.63ms. Allocated memory is still 286.3MB. Free memory was 216.8MB in the beginning and 212.2MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,788 INFO L158 Benchmark]: Boogie Preprocessor took 82.82ms. Allocated memory is still 286.3MB. Free memory was 212.2MB in the beginning and 202.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,789 INFO L158 Benchmark]: RCFGBuilder took 62114.04ms. Allocated memory is still 286.3MB. Free memory was 202.0MB in the beginning and 203.6MB in the end (delta: -1.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,789 INFO L158 Benchmark]: TraceAbstraction took 568806.22ms. Allocated memory is still 286.3MB. Free memory was 203.0MB in the beginning and 83.5MB in the end (delta: 119.6MB). Peak memory consumption was 119.7MB. Max. memory is 8.0GB. [2023-12-24 07:43:35,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 186.6MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.73ms. Allocated memory is still 286.3MB. Free memory was 240.9MB in the beginning and 216.8MB in the end (delta: 24.2MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.63ms. Allocated memory is still 286.3MB. Free memory was 216.8MB in the beginning and 212.2MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.82ms. Allocated memory is still 286.3MB. Free memory was 212.2MB in the beginning and 202.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 62114.04ms. Allocated memory is still 286.3MB. Free memory was 202.0MB in the beginning and 203.6MB in the end (delta: -1.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 568806.22ms. Allocated memory is still 286.3MB. Free memory was 203.0MB in the beginning and 83.5MB in the end (delta: 119.6MB). Peak memory consumption was 119.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...