/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 15:31:13,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 15:31:14,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 15:31:14,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 15:31:14,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 15:31:14,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 15:31:14,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 15:31:14,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 15:31:14,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 15:31:14,034 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 15:31:14,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 15:31:14,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 15:31:14,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 15:31:14,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 15:31:14,035 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 15:31:14,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 15:31:14,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 15:31:14,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 15:31:14,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 15:31:14,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 15:31:14,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 15:31:14,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 15:31:14,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 15:31:14,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 15:31:14,040 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 15:31:14,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 15:31:14,040 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 15:31:14,041 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 15:31:14,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 15:31:14,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 15:31:14,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 15:31:14,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 15:31:14,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 15:31:14,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 15:31:14,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 15:31:14,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 15:31:14,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 15:31:14,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 15:31:14,043 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 15:31:14,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 15:31:14,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 15:31:14,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 15:31:14,045 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 15:31:14,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 15:31:14,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 15:31:14,046 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 15:31:14,046 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 15:31:14,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 15:31:14,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 15:31:14,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 15:31:14,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 15:31:14,238 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 15:31:14,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i [2023-12-23 15:31:15,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 15:31:15,492 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 15:31:15,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i [2023-12-23 15:31:15,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc290a86b/5f51cf9fd261498cba03e920d69f25a6/FLAGadb116393 [2023-12-23 15:31:15,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc290a86b/5f51cf9fd261498cba03e920d69f25a6 [2023-12-23 15:31:15,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 15:31:15,521 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 15:31:15,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 15:31:15,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 15:31:15,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 15:31:15,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650d302e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15, skipping insertion in model container [2023-12-23 15:31:15,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 15:31:15,667 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i[919,932] [2023-12-23 15:31:15,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 15:31:15,750 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 15:31:15,760 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i[919,932] [2023-12-23 15:31:15,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 15:31:15,816 INFO L206 MainTranslator]: Completed translation [2023-12-23 15:31:15,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15 WrapperNode [2023-12-23 15:31:15,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 15:31:15,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 15:31:15,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 15:31:15,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 15:31:15,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,851 INFO L138 Inliner]: procedures = 27, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2023-12-23 15:31:15,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 15:31:15,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 15:31:15,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 15:31:15,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 15:31:15,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,879 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 15:31:15,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 15:31:15,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 15:31:15,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 15:31:15,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 15:31:15,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (1/1) ... [2023-12-23 15:31:15,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 15:31:15,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 15:31:15,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 15:31:15,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 15:31:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 15:31:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 15:31:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 15:31:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 15:31:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 15:31:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 15:31:16,018 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 15:31:16,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 15:31:16,565 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 15:31:16,610 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 15:31:16,611 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 15:31:16,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:31:16 BoogieIcfgContainer [2023-12-23 15:31:16,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 15:31:16,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 15:31:16,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 15:31:16,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 15:31:16,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:31:15" (1/3) ... [2023-12-23 15:31:16,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9504ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:31:16, skipping insertion in model container [2023-12-23 15:31:16,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:31:15" (2/3) ... [2023-12-23 15:31:16,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9504ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:31:16, skipping insertion in model container [2023-12-23 15:31:16,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:31:16" (3/3) ... [2023-12-23 15:31:16,618 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-61.i [2023-12-23 15:31:16,630 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 15:31:16,630 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 15:31:16,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 15:31:16,669 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;@76f7b81a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 15:31:16,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 15:31:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 61 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 15:31:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 15:31:16,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 15:31:16,686 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 15:31:16,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 15:31:16,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 15:31:16,690 INFO L85 PathProgramCache]: Analyzing trace with hash -361206423, now seen corresponding path program 1 times [2023-12-23 15:31:16,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 15:31:16,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946865073] [2023-12-23 15:31:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 15:31:16,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:16,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 15:31:16,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 15:31:16,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 15:31:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 15:31:17,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 15:31:17,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 15:31:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1402 proven. 0 refuted. 0 times theorem prover too weak. 2042 trivial. 0 not checked. [2023-12-23 15:31:17,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 15:31:17,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 15:31:17,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946865073] [2023-12-23 15:31:17,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946865073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 15:31:17,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 15:31:17,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 15:31:17,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849314782] [2023-12-23 15:31:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 15:31:17,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 15:31:17,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 15:31:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 15:31:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 15:31:17,186 INFO L87 Difference]: Start difference. First operand has 105 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 61 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 15:31:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 15:31:17,440 INFO L93 Difference]: Finished difference Result 207 states and 384 transitions. [2023-12-23 15:31:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 15:31:17,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 256 [2023-12-23 15:31:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 15:31:17,462 INFO L225 Difference]: With dead ends: 207 [2023-12-23 15:31:17,462 INFO L226 Difference]: Without dead ends: 103 [2023-12-23 15:31:17,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 15:31:17,467 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 15:31:17,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 15:31:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-23 15:31:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-23 15:31:17,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 59 states have internal predecessors, (83), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 15:31:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 167 transitions. [2023-12-23 15:31:17,503 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 167 transitions. Word has length 256 [2023-12-23 15:31:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 15:31:17,503 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 167 transitions. [2023-12-23 15:31:17,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 15:31:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 167 transitions. [2023-12-23 15:31:17,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 15:31:17,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 15:31:17,507 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 15:31:17,532 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 [2023-12-23 15:31:17,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:17,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 15:31:17,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 15:31:17,718 INFO L85 PathProgramCache]: Analyzing trace with hash -410291799, now seen corresponding path program 1 times [2023-12-23 15:31:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 15:31:17,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024912414] [2023-12-23 15:31:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 15:31:17,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:17,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 15:31:17,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 15:31:17,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 15:31:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 15:31:17,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 15:31:17,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 15:31:18,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 15:31:18,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 15:31:18,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 15:31:18,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024912414] [2023-12-23 15:31:18,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024912414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 15:31:18,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 15:31:18,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 15:31:18,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371660477] [2023-12-23 15:31:18,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 15:31:18,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 15:31:18,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 15:31:18,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 15:31:18,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 15:31:18,072 INFO L87 Difference]: Start difference. First operand 103 states and 167 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 15:31:18,410 INFO L93 Difference]: Finished difference Result 287 states and 465 transitions. [2023-12-23 15:31:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 15:31:18,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2023-12-23 15:31:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 15:31:18,413 INFO L225 Difference]: With dead ends: 287 [2023-12-23 15:31:18,413 INFO L226 Difference]: Without dead ends: 185 [2023-12-23 15:31:18,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 15:31:18,415 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 125 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 15:31:18,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 400 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 15:31:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-23 15:31:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2023-12-23 15:31:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 104 states have (on average 1.3942307692307692) internal successors, (145), 105 states have internal predecessors, (145), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-23 15:31:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 295 transitions. [2023-12-23 15:31:18,440 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 295 transitions. Word has length 256 [2023-12-23 15:31:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 15:31:18,441 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 295 transitions. [2023-12-23 15:31:18,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 295 transitions. [2023-12-23 15:31:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 15:31:18,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 15:31:18,443 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 15:31:18,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 15:31:18,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:18,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 15:31:18,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 15:31:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1431360153, now seen corresponding path program 1 times [2023-12-23 15:31:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 15:31:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636500067] [2023-12-23 15:31:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 15:31:18,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:18,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 15:31:18,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 15:31:18,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 15:31:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 15:31:18,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 15:31:18,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 15:31:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 15:31:19,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 15:31:19,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 15:31:19,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636500067] [2023-12-23 15:31:19,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636500067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 15:31:19,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 15:31:19,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 15:31:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575542284] [2023-12-23 15:31:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 15:31:19,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 15:31:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 15:31:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 15:31:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 15:31:19,244 INFO L87 Difference]: Start difference. First operand 182 states and 295 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 15:31:19,834 INFO L93 Difference]: Finished difference Result 574 states and 930 transitions. [2023-12-23 15:31:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 15:31:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2023-12-23 15:31:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 15:31:19,850 INFO L225 Difference]: With dead ends: 574 [2023-12-23 15:31:19,851 INFO L226 Difference]: Without dead ends: 393 [2023-12-23 15:31:19,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 15:31:19,857 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 152 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 15:31:19,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 550 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 15:31:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-23 15:31:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 361. [2023-12-23 15:31:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 206 states have (on average 1.3883495145631068) internal successors, (286), 208 states have internal predecessors, (286), 150 states have call successors, (150), 4 states have call predecessors, (150), 4 states have return successors, (150), 148 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-23 15:31:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 586 transitions. [2023-12-23 15:31:19,969 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 586 transitions. Word has length 256 [2023-12-23 15:31:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 15:31:19,972 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 586 transitions. [2023-12-23 15:31:19,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 586 transitions. [2023-12-23 15:31:19,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 15:31:19,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 15:31:19,976 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 15:31:20,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-23 15:31:20,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:20,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 15:31:20,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 15:31:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1852489893, now seen corresponding path program 1 times [2023-12-23 15:31:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 15:31:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009097087] [2023-12-23 15:31:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 15:31:20,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 15:31:20,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 15:31:20,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 15:31:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 15:31:20,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 15:31:20,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 15:31:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 15:31:20,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 15:31:20,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 15:31:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009097087] [2023-12-23 15:31:20,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009097087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 15:31:20,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 15:31:20,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 15:31:20,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233453714] [2023-12-23 15:31:20,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 15:31:20,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 15:31:20,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 15:31:20,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 15:31:20,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-23 15:31:20,749 INFO L87 Difference]: Start difference. First operand 361 states and 586 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:21,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 15:31:21,188 INFO L93 Difference]: Finished difference Result 363 states and 587 transitions. [2023-12-23 15:31:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 15:31:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2023-12-23 15:31:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 15:31:21,206 INFO L225 Difference]: With dead ends: 363 [2023-12-23 15:31:21,206 INFO L226 Difference]: Without dead ends: 182 [2023-12-23 15:31:21,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-23 15:31:21,208 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 15:31:21,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 214 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 15:31:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-23 15:31:21,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-12-23 15:31:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 104 states have (on average 1.3557692307692308) internal successors, (141), 105 states have internal predecessors, (141), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-23 15:31:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 291 transitions. [2023-12-23 15:31:21,226 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 291 transitions. Word has length 256 [2023-12-23 15:31:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 15:31:21,226 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 291 transitions. [2023-12-23 15:31:21,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 15:31:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 291 transitions. [2023-12-23 15:31:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 15:31:21,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 15:31:21,228 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 15:31:21,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 15:31:21,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:21,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 15:31:21,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 15:31:21,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1459462883, now seen corresponding path program 1 times [2023-12-23 15:31:21,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 15:31:21,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558179789] [2023-12-23 15:31:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 15:31:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:31:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 15:31:21,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 15:31:21,457 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 (6)] Waiting until timeout for monitored process [2023-12-23 15:31:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 15:31:21,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-23 15:31:21,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 15:45:54,568 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 15:45:54,598 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 15:45:54,603 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 15:45:54,613 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 (6)] Forceful destruction successful, exit code 0 [2023-12-23 15:45:54,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 15:45:54,813 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 257 with TraceHistMax 42,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. [2023-12-23 15:45:54,819 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 15:45:54,820 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 15:45:54,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 03:45:54 BoogieIcfgContainer [2023-12-23 15:45:54,823 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 15:45:54,823 INFO L158 Benchmark]: Toolchain (without parser) took 879302.51ms. Allocated memory was 323.0MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 275.9MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-23 15:45:54,825 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 169.9MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 15:45:54,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.06ms. Allocated memory is still 323.0MB. Free memory was 275.9MB in the beginning and 259.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 15:45:54,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.97ms. Allocated memory is still 323.0MB. Free memory was 259.2MB in the beginning and 256.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 15:45:54,827 INFO L158 Benchmark]: Boogie Preprocessor took 46.25ms. Allocated memory is still 323.0MB. Free memory was 256.5MB in the beginning and 252.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 15:45:54,828 INFO L158 Benchmark]: RCFGBuilder took 713.13ms. Allocated memory is still 323.0MB. Free memory was 252.9MB in the beginning and 224.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-23 15:45:54,829 INFO L158 Benchmark]: TraceAbstraction took 878210.10ms. Allocated memory was 323.0MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 224.0MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-23 15:45:54,830 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 169.9MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.06ms. Allocated memory is still 323.0MB. Free memory was 275.9MB in the beginning and 259.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.97ms. Allocated memory is still 323.0MB. Free memory was 259.2MB in the beginning and 256.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.25ms. Allocated memory is still 323.0MB. Free memory was 256.5MB in the beginning and 252.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 713.13ms. Allocated memory is still 323.0MB. Free memory was 252.9MB in the beginning and 224.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 878210.10ms. Allocated memory was 323.0MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 224.0MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.0GB. 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 257 with TraceHistMax 42,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-72-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.2s, OverallIterations: 5, TraceHistogramMax: 42, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 1328 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 581 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 747 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1022 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1024 NumberOfCodeBlocks, 1024 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1020 ConstructedInterpolants, 0 QuantifiedInterpolants, 2502 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1629 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 13776/13776 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