/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/array-multidimensional/add-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 18:55:04,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 18:55:05,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 18:55:05,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 18:55:05,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 18:55:05,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 18:55:05,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 18:55:05,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 18:55:05,077 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 18:55:05,080 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 18:55:05,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 18:55:05,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 18:55:05,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 18:55:05,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 18:55:05,082 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 18:55:05,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 18:55:05,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 18:55:05,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 18:55:05,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 18:55:05,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 18:55:05,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 18:55:05,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 18:55:05,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 18:55:05,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 18:55:05,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 18:55:05,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 18:55:05,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:55:05,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 18:55:05,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 18:55:05,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 18:55:05,088 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 18:55:05,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 18:55:05,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 18:55:05,088 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 18:55:05,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 18:55:05,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 18:55:05,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 18:55:05,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 18:55:05,263 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 18:55:05,263 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 18:55:05,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/add-2-n-u.c [2023-12-21 18:55:06,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 18:55:06,502 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 18:55:06,502 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-2-n-u.c [2023-12-21 18:55:06,508 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d443ff4f2/d90f045f8a1f4ece914183206f916246/FLAG07809de2a [2023-12-21 18:55:06,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d443ff4f2/d90f045f8a1f4ece914183206f916246 [2023-12-21 18:55:06,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 18:55:06,528 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 18:55:06,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 18:55:06,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 18:55:06,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 18:55:06,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1234b03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06, skipping insertion in model container [2023-12-21 18:55:06,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 18:55:06,662 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-2-n-u.c[321,334] [2023-12-21 18:55:06,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:55:06,695 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 18:55:06,704 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-2-n-u.c[321,334] [2023-12-21 18:55:06,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:55:06,733 INFO L206 MainTranslator]: Completed translation [2023-12-21 18:55:06,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06 WrapperNode [2023-12-21 18:55:06,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 18:55:06,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 18:55:06,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 18:55:06,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 18:55:06,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,771 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-12-21 18:55:06,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 18:55:06,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 18:55:06,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 18:55:06,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 18:55:06,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,798 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-12-21 18:55:06,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 18:55:06,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 18:55:06,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 18:55:06,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 18:55:06,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (1/1) ... [2023-12-21 18:55:06,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:55:06,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 18:55:06,869 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) [2023-12-21 18:55:06,874 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 [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-21 18:55:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 18:55:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-21 18:55:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-21 18:55:06,971 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 18:55:06,972 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 18:55:07,225 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 18:55:07,251 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 18:55:07,251 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-21 18:55:07,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:55:07 BoogieIcfgContainer [2023-12-21 18:55:07,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 18:55:07,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 18:55:07,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 18:55:07,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 18:55:07,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 06:55:06" (1/3) ... [2023-12-21 18:55:07,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4259ecf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:55:07, skipping insertion in model container [2023-12-21 18:55:07,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:06" (2/3) ... [2023-12-21 18:55:07,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4259ecf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:55:07, skipping insertion in model container [2023-12-21 18:55:07,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:55:07" (3/3) ... [2023-12-21 18:55:07,259 INFO L112 eAbstractionObserver]: Analyzing ICFG add-2-n-u.c [2023-12-21 18:55:07,272 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 18:55:07,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 18:55:07,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 18:55:07,313 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;@70c5686, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 18:55:07,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 18:55:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.875) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-21 18:55:07,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:07,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:07,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:07,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1021079152, now seen corresponding path program 1 times [2023-12-21 18:55:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945310339] [2023-12-21 18:55:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:07,338 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 [2023-12-21 18:55:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:07,340 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) [2023-12-21 18:55:07,360 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 [2023-12-21 18:55:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:07,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:07,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:07,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:07,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:07,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945310339] [2023-12-21 18:55:07,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945310339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:07,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:07,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 18:55:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676941342] [2023-12-21 18:55:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:07,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 18:55:07,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:07,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 18:55:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 18:55:07,535 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.875) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:07,641 INFO L93 Difference]: Finished difference Result 38 states and 66 transitions. [2023-12-21 18:55:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 18:55:07,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-21 18:55:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:07,649 INFO L225 Difference]: With dead ends: 38 [2023-12-21 18:55:07,649 INFO L226 Difference]: Without dead ends: 19 [2023-12-21 18:55:07,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 18:55:07,654 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:07,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 25 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:55:07,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-12-21 18:55:07,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-12-21 18:55:07,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-12-21 18:55:07,678 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2023-12-21 18:55:07,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:07,678 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-12-21 18:55:07,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:07,678 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-21 18:55:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-21 18:55:07,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:07,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:07,685 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 [2023-12-21 18:55:07,882 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 [2023-12-21 18:55:07,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:07,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash -109940317, now seen corresponding path program 1 times [2023-12-21 18:55:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:07,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35687983] [2023-12-21 18:55:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:07,886 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 [2023-12-21 18:55:07,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:07,887 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) [2023-12-21 18:55:07,918 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 [2023-12-21 18:55:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:07,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:07,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:07,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:07,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:07,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:07,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35687983] [2023-12-21 18:55:07,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35687983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:07,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:07,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:55:07,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009580752] [2023-12-21 18:55:07,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:07,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:55:07,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:07,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:55:07,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:07,982 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:08,079 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2023-12-21 18:55:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:55:08,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-21 18:55:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:08,081 INFO L225 Difference]: With dead ends: 42 [2023-12-21 18:55:08,081 INFO L226 Difference]: Without dead ends: 27 [2023-12-21 18:55:08,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:08,082 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:08,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 21 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:55:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-21 18:55:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2023-12-21 18:55:08,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-12-21 18:55:08,086 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 12 [2023-12-21 18:55:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:08,086 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-12-21 18:55:08,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-21 18:55:08,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 18:55:08,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:08,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:08,094 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 [2023-12-21 18:55:08,291 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 [2023-12-21 18:55:08,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:08,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash 201196895, now seen corresponding path program 1 times [2023-12-21 18:55:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:08,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481296130] [2023-12-21 18:55:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:08,294 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 [2023-12-21 18:55:08,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:08,295 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) [2023-12-21 18:55:08,311 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 [2023-12-21 18:55:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:08,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 18:55:08,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:08,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:08,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:08,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481296130] [2023-12-21 18:55:08,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481296130] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:08,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:08,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 18:55:08,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217088831] [2023-12-21 18:55:08,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:08,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 18:55:08,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:08,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 18:55:08,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 18:55:08,549 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:08,738 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2023-12-21 18:55:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 18:55:08,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-21 18:55:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:08,739 INFO L225 Difference]: With dead ends: 62 [2023-12-21 18:55:08,739 INFO L226 Difference]: Without dead ends: 44 [2023-12-21 18:55:08,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:55:08,741 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 85 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:08,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 41 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 18:55:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-21 18:55:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2023-12-21 18:55:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2023-12-21 18:55:08,747 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 13 [2023-12-21 18:55:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:08,747 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2023-12-21 18:55:08,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:08,748 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2023-12-21 18:55:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 18:55:08,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:08,748 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:08,752 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 [2023-12-21 18:55:08,951 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 [2023-12-21 18:55:08,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:08,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 160923811, now seen corresponding path program 2 times [2023-12-21 18:55:08,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:08,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553705983] [2023-12-21 18:55:08,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:55:08,953 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 [2023-12-21 18:55:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:08,954 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) [2023-12-21 18:55:08,955 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 [2023-12-21 18:55:09,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 18:55:09,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:09,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:09,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 18:55:09,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:09,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:09,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553705983] [2023-12-21 18:55:09,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553705983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:09,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:09,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:55:09,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221461261] [2023-12-21 18:55:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:09,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:55:09,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:09,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:55:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:09,059 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:09,155 INFO L93 Difference]: Finished difference Result 83 states and 102 transitions. [2023-12-21 18:55:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:55:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-21 18:55:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:09,158 INFO L225 Difference]: With dead ends: 83 [2023-12-21 18:55:09,159 INFO L226 Difference]: Without dead ends: 65 [2023-12-21 18:55:09,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:09,159 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 39 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:09,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 16 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:55:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-21 18:55:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 36. [2023-12-21 18:55:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 35 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2023-12-21 18:55:09,168 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 16 [2023-12-21 18:55:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:09,168 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2023-12-21 18:55:09,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:09,169 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-12-21 18:55:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-21 18:55:09,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:09,169 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:09,184 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 [2023-12-21 18:55:09,372 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 [2023-12-21 18:55:09,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:09,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1512840420, now seen corresponding path program 1 times [2023-12-21 18:55:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687418169] [2023-12-21 18:55:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:09,374 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 [2023-12-21 18:55:09,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:09,375 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) [2023-12-21 18:55:09,377 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 [2023-12-21 18:55:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:09,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 18:55:09,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 18:55:09,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 18:55:09,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687418169] [2023-12-21 18:55:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687418169] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:09,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:09,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-21 18:55:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132485030] [2023-12-21 18:55:09,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 18:55:09,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:09,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 18:55:09,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 18:55:09,710 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:10,332 INFO L93 Difference]: Finished difference Result 119 states and 150 transitions. [2023-12-21 18:55:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 18:55:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-21 18:55:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:10,334 INFO L225 Difference]: With dead ends: 119 [2023-12-21 18:55:10,334 INFO L226 Difference]: Without dead ends: 85 [2023-12-21 18:55:10,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-12-21 18:55:10,335 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 274 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:10,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 127 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 18:55:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-21 18:55:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 66. [2023-12-21 18:55:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 65 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 80 transitions. [2023-12-21 18:55:10,345 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 80 transitions. Word has length 23 [2023-12-21 18:55:10,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:10,345 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 80 transitions. [2023-12-21 18:55:10,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 80 transitions. [2023-12-21 18:55:10,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-21 18:55:10,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:10,346 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:10,366 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 [2023-12-21 18:55:10,551 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 [2023-12-21 18:55:10,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:10,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash -613040220, now seen corresponding path program 2 times [2023-12-21 18:55:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:10,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123659188] [2023-12-21 18:55:10,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:55:10,552 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 [2023-12-21 18:55:10,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:10,555 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 18:55:10,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-21 18:55:10,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 18:55:10,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:10,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 18:55:10,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-21 18:55:10,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-21 18:55:11,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:11,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123659188] [2023-12-21 18:55:11,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123659188] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:11,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:11,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 18:55:11,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434714584] [2023-12-21 18:55:11,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:11,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 18:55:11,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 18:55:11,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-21 18:55:11,478 INFO L87 Difference]: Start difference. First operand 66 states and 80 transitions. Second operand has 26 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:13,880 INFO L93 Difference]: Finished difference Result 233 states and 288 transitions. [2023-12-21 18:55:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 18:55:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-12-21 18:55:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:13,886 INFO L225 Difference]: With dead ends: 233 [2023-12-21 18:55:13,886 INFO L226 Difference]: Without dead ends: 169 [2023-12-21 18:55:13,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 18:55:13,890 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 601 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:13,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 473 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 18:55:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-21 18:55:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 126. [2023-12-21 18:55:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.216) internal successors, (152), 125 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2023-12-21 18:55:13,919 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 35 [2023-12-21 18:55:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:13,920 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2023-12-21 18:55:13,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2023-12-21 18:55:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-21 18:55:13,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:13,921 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:13,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 18:55:14,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-21 18:55:14,122 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:14,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1067390244, now seen corresponding path program 3 times [2023-12-21 18:55:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:14,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997249572] [2023-12-21 18:55:14,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 18:55:14,123 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 [2023-12-21 18:55:14,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:14,124 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-21 18:55:14,127 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 (8)] Waiting until timeout for monitored process [2023-12-21 18:55:14,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 18:55:14,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:14,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 18:55:14,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-12-21 18:55:14,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-12-21 18:55:14,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:14,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997249572] [2023-12-21 18:55:14,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997249572] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:14,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:14,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 18:55:14,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500698840] [2023-12-21 18:55:14,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:14,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 18:55:14,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 18:55:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 18:55:14,491 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:14,723 INFO L93 Difference]: Finished difference Result 589 states and 717 transitions. [2023-12-21 18:55:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 18:55:14,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-21 18:55:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:14,725 INFO L225 Difference]: With dead ends: 589 [2023-12-21 18:55:14,725 INFO L226 Difference]: Without dead ends: 490 [2023-12-21 18:55:14,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:55:14,726 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 117 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:14,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 37 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 18:55:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-12-21 18:55:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 276. [2023-12-21 18:55:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 1.12) internal successors, (308), 275 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 308 transitions. [2023-12-21 18:55:14,772 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 308 transitions. Word has length 59 [2023-12-21 18:55:14,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:14,772 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 308 transitions. [2023-12-21 18:55:14,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:14,772 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 308 transitions. [2023-12-21 18:55:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-21 18:55:14,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:14,782 INFO L195 NwaCegarLoop]: trace histogram [88, 88, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:14,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 18:55:14,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-21 18:55:14,985 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:14,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1557367024, now seen corresponding path program 4 times [2023-12-21 18:55:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:14,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654568237] [2023-12-21 18:55:14,989 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 18:55:14,989 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 [2023-12-21 18:55:14,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:14,990 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-21 18:55:15,008 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 (9)] Waiting until timeout for monitored process [2023-12-21 18:55:15,991 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 18:55:15,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:16,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 18:55:16,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8404 backedges. 1591 proven. 253 refuted. 0 times theorem prover too weak. 6560 trivial. 0 not checked. [2023-12-21 18:55:16,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 8404 backedges. 1591 proven. 253 refuted. 0 times theorem prover too weak. 6560 trivial. 0 not checked. [2023-12-21 18:55:18,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:18,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654568237] [2023-12-21 18:55:18,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654568237] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:18,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:18,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-21 18:55:18,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082086029] [2023-12-21 18:55:18,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:18,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-21 18:55:18,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:18,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-21 18:55:18,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 18:55:18,184 INFO L87 Difference]: Start difference. First operand 276 states and 308 transitions. Second operand has 50 states, 50 states have (on average 1.32) internal successors, (66), 49 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:28,907 INFO L93 Difference]: Finished difference Result 882 states and 1140 transitions. [2023-12-21 18:55:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 18:55:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.32) internal successors, (66), 49 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2023-12-21 18:55:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:28,916 INFO L225 Difference]: With dead ends: 882 [2023-12-21 18:55:28,916 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 18:55:28,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 18:55:28,919 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2554 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 1134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1134 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:28,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 1798 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1134 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 18:55:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 18:55:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 540. [2023-12-21 18:55:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.1057513914656771) internal successors, (596), 539 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 596 transitions. [2023-12-21 18:55:28,969 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 596 transitions. Word has length 209 [2023-12-21 18:55:28,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:28,969 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 596 transitions. [2023-12-21 18:55:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.32) internal successors, (66), 49 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:55:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 596 transitions. [2023-12-21 18:55:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-12-21 18:55:28,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:28,973 INFO L195 NwaCegarLoop]: trace histogram [184, 184, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:29,006 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 (9)] Ended with exit code 0 [2023-12-21 18:55:29,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-21 18:55:29,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:29,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1187030256, now seen corresponding path program 5 times [2023-12-21 18:55:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077213394] [2023-12-21 18:55:29,190 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 18:55:29,190 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 [2023-12-21 18:55:29,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:29,191 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-21 18:55:29,192 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 (10)] Waiting until timeout for monitored process [2023-12-21 18:58:21,208 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 74 check-sat command(s) [2023-12-21 18:58:21,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:58:21,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-21 18:58:21,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:58:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 35188 backedges. 11054 proven. 1081 refuted. 0 times theorem prover too weak. 23053 trivial. 0 not checked. [2023-12-21 18:58:22,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:58:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 35188 backedges. 8845 proven. 3290 refuted. 0 times theorem prover too weak. 23053 trivial. 0 not checked. [2023-12-21 18:58:28,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:58:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077213394] [2023-12-21 18:58:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077213394] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:58:28,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:58:28,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2023-12-21 18:58:28,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733569037] [2023-12-21 18:58:28,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:58:28,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-21 18:58:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:58:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-21 18:58:28,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2023-12-21 18:58:28,295 INFO L87 Difference]: Start difference. First operand 540 states and 596 transitions. Second operand has 98 states, 98 states have (on average 1.2448979591836735) internal successors, (122), 97 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:59:29,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:59:29,583 INFO L93 Difference]: Finished difference Result 1746 states and 2244 transitions. [2023-12-21 18:59:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-12-21 18:59:29,583 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.2448979591836735) internal successors, (122), 97 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2023-12-21 18:59:29,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:59:29,587 INFO L225 Difference]: With dead ends: 1746 [2023-12-21 18:59:29,587 INFO L226 Difference]: Without dead ends: 1255 [2023-12-21 18:59:29,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3431 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=7156, Invalid=14014, Unknown=0, NotChecked=0, Total=21170 [2023-12-21 18:59:29,591 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 9663 mSDsluCounter, 6864 mSDsCounter, 0 mSdLazyCounter, 9450 mSolverCounterSat, 4579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9663 SdHoareTripleChecker+Valid, 7015 SdHoareTripleChecker+Invalid, 14029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4579 IncrementalHoareTripleChecker+Valid, 9450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:59:29,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9663 Valid, 7015 Invalid, 14029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4579 Valid, 9450 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2023-12-21 18:59:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-12-21 18:59:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1068. [2023-12-21 18:59:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.098406747891284) internal successors, (1172), 1067 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:59:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1172 transitions. [2023-12-21 18:59:29,715 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1172 transitions. Word has length 401 [2023-12-21 18:59:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:59:29,716 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1172 transitions. [2023-12-21 18:59:29,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.2448979591836735) internal successors, (122), 97 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:59:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1172 transitions. [2023-12-21 18:59:29,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2023-12-21 18:59:29,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:59:29,727 INFO L195 NwaCegarLoop]: trace histogram [376, 376, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:59:29,837 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 (10)] Forceful destruction successful, exit code 0 [2023-12-21 18:59:29,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-21 18:59:29,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:59:29,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:59:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash -982590224, now seen corresponding path program 6 times [2023-12-21 18:59:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:59:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916277592] [2023-12-21 18:59:29,955 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 18:59:29,955 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 [2023-12-21 18:59:29,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:59:29,959 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-21 18:59:29,970 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 (11)] Waiting until timeout for monitored process Received shutdown request... [2023-12-21 19:09:52,293 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 [2023-12-21 19:09:52,293 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 19:09:53,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-21 19:09:53,500 WARN L435 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 (11)] Forcibly destroying the process [2023-12-21 19:09:53,579 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 (11)] Forceful destruction successful, exit code 137 [2023-12-21 19:09:53,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-21 19:09:53,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 19:09:53,582 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 786 with TraceHistMax 376,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1916277592] and IpTcStrategyModuleCvc4 [1450341755]. [2023-12-21 19:09:53,585 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1] [2023-12-21 19:09:53,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 19:09:53,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 07:09:53 BoogieIcfgContainer [2023-12-21 19:09:53,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 19:09:53,602 INFO L158 Benchmark]: Toolchain (without parser) took 887067.75ms. Allocated memory was 211.8MB in the beginning and 313.5MB in the end (delta: 101.7MB). Free memory was 173.1MB in the beginning and 137.0MB in the end (delta: 36.1MB). Peak memory consumption was 138.1MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,602 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 211.8MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 19:09:53,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.57ms. Allocated memory is still 211.8MB. Free memory was 173.1MB in the beginning and 161.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.36ms. Allocated memory is still 211.8MB. Free memory was 161.1MB in the beginning and 159.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,605 INFO L158 Benchmark]: Boogie Preprocessor took 63.80ms. Allocated memory is still 211.8MB. Free memory was 159.5MB in the beginning and 157.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,605 INFO L158 Benchmark]: RCFGBuilder took 415.73ms. Allocated memory is still 211.8MB. Free memory was 157.5MB in the beginning and 141.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,605 INFO L158 Benchmark]: TraceAbstraction took 886340.87ms. Allocated memory was 211.8MB in the beginning and 313.5MB in the end (delta: 101.7MB). Free memory was 140.7MB in the beginning and 137.0MB in the end (delta: 3.7MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. [2023-12-21 19:09:53,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 211.8MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 204.57ms. Allocated memory is still 211.8MB. Free memory was 173.1MB in the beginning and 161.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.36ms. Allocated memory is still 211.8MB. Free memory was 161.1MB in the beginning and 159.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.80ms. Allocated memory is still 211.8MB. Free memory was 159.5MB in the beginning and 157.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 415.73ms. Allocated memory is still 211.8MB. Free memory was 157.5MB in the beginning and 141.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 886340.87ms. Allocated memory was 211.8MB in the beginning and 313.5MB in the end (delta: 101.7MB). Free memory was 140.7MB in the beginning and 137.0MB in the end (delta: 3.7MB). Peak memory consumption was 105.6MB. 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: 7]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 7). Cancelled while NwaCegarLoop was analyzing trace of length 786 with TraceHistMax 376,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1916277592] and IpTcStrategyModuleCvc4 [1450341755]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 886.3s, OverallIterations: 10, TraceHistogramMax: 376, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 75.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13359 SdHoareTripleChecker+Valid, 25.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13359 mSDsluCounter, 9553 SdHoareTripleChecker+Invalid, 22.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9183 mSDsCounter, 6201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12847 IncrementalHoareTripleChecker+Invalid, 19048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6201 mSolverCounterUnsat, 370 mSDtfsCounter, 12847 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1593 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4520 ImplicationChecksByTransitivity, 58.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1068occurred in iteration=9, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 601 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 172.8s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 777 NumberOfCodeBlocks, 726 NumberOfCodeBlocksAsserted, 84 NumberOfCheckSat, 1502 ConstructedInterpolants, 0 QuantifiedInterpolants, 3247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4290 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 83473/88484 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