/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/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:58:56,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:58:56,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:58:56,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:58:56,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:58:56,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:58:56,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:58:56,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:58:56,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:58:56,303 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:58:56,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:58:56,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:58:56,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:58:56,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:58:56,304 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:58:56,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:58:56,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:58:56,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:58:56,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:58:56,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:58:56,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:58:56,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:58:56,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:58:56,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:58:56,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:58:56,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:58:56,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:58:56,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:58:56,310 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:58:56,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:58:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:58:56,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:58:56,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:58:56,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:58:56,485 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:58:56,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:58:57,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:58:57,751 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:58:57,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:58:57,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898e735d2/90ba8d7eb2be4881ac654e0b006a3036/FLAGf2ee2705c [2023-12-16 17:58:57,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898e735d2/90ba8d7eb2be4881ac654e0b006a3036 [2023-12-16 17:58:57,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:58:57,784 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:58:57,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:58:57,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:58:57,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:58:57,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:58:57" (1/1) ... [2023-12-16 17:58:57,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0de6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:57, skipping insertion in model container [2023-12-16 17:58:57,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:58:57" (1/1) ... [2023-12-16 17:58:57,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:58:58,155 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2023-12-16 17:58:58,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:58:58,168 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:58:58,238 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2023-12-16 17:58:58,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:58:58,251 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:58:58,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58 WrapperNode [2023-12-16 17:58:58,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:58:58,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:58:58,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:58:58,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:58:58,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,337 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1953 [2023-12-16 17:58:58,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:58:58,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:58:58,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:58:58,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:58:58,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,376 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:58:58,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:58:58,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:58:58,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:58:58,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:58:58,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (1/1) ... [2023-12-16 17:58:58,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:58:58,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:58:58,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:58:58,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:58:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:58:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:58:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:58:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:58:58,631 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:58:58,633 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:58:59,862 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:58:59,912 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:58:59,912 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:58:59,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:58:59 BoogieIcfgContainer [2023-12-16 17:58:59,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:58:59,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:58:59,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:58:59,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:58:59,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:58:57" (1/3) ... [2023-12-16 17:58:59,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f4a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:58:59, skipping insertion in model container [2023-12-16 17:58:59,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:58:58" (2/3) ... [2023-12-16 17:58:59,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f4a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:58:59, skipping insertion in model container [2023-12-16 17:58:59,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:58:59" (3/3) ... [2023-12-16 17:58:59,919 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:58:59,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:58:59,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:58:59,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:58:59,989 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;@ebf61d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:58:59,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:58:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 641 states, 639 states have (on average 1.8748043818466353) internal successors, (1198), 640 states have internal predecessors, (1198), 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) [2023-12-16 17:59:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 17:59:00,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:00,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:00,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:00,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1260127138, now seen corresponding path program 1 times [2023-12-16 17:59:00,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:00,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284053287] [2023-12-16 17:59:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:00,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:00,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:00,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:59:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:00,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:59:00,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:00,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:00,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:00,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284053287] [2023-12-16 17:59:00,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284053287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:00,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:00,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:59:00,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704924956] [2023-12-16 17:59:00,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:00,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:59:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:00,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:59:00,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:59:00,336 INFO L87 Difference]: Start difference. First operand has 641 states, 639 states have (on average 1.8748043818466353) internal successors, (1198), 640 states have internal predecessors, (1198), 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 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2023-12-16 17:59:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:00,379 INFO L93 Difference]: Finished difference Result 759 states and 1412 transitions. [2023-12-16 17:59:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:59:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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 150 [2023-12-16 17:59:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:00,391 INFO L225 Difference]: With dead ends: 759 [2023-12-16 17:59:00,391 INFO L226 Difference]: Without dead ends: 639 [2023-12-16 17:59:00,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:59:00,396 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:00,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1191 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:00,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-16 17:59:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2023-12-16 17:59:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 638 states have (on average 1.8699059561128526) internal successors, (1193), 638 states have internal predecessors, (1193), 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) [2023-12-16 17:59:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1193 transitions. [2023-12-16 17:59:00,456 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1193 transitions. Word has length 150 [2023-12-16 17:59:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:00,457 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 1193 transitions. [2023-12-16 17:59:00,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2023-12-16 17:59:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1193 transitions. [2023-12-16 17:59:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 17:59:00,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:00,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:00,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:00,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:00,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:00,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1111612124, now seen corresponding path program 1 times [2023-12-16 17:59:00,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:00,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381746363] [2023-12-16 17:59:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:00,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:00,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:00,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:00,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:59:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:00,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:59:00,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:00,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:00,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381746363] [2023-12-16 17:59:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381746363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:00,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:00,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:59:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147722134] [2023-12-16 17:59:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:00,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:00,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:00,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:00,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:00,961 INFO L87 Difference]: Start difference. First operand 639 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-12-16 17:59:01,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:01,032 INFO L93 Difference]: Finished difference Result 757 states and 1405 transitions. [2023-12-16 17:59:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:59:01,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2023-12-16 17:59:01,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:01,039 INFO L225 Difference]: With dead ends: 757 [2023-12-16 17:59:01,040 INFO L226 Difference]: Without dead ends: 639 [2023-12-16 17:59:01,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:01,042 INFO L413 NwaCegarLoop]: 1190 mSDtfsCounter, 0 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:01,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3527 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-16 17:59:01,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2023-12-16 17:59:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 638 states have (on average 1.8072100313479624) internal successors, (1153), 638 states have internal predecessors, (1153), 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) [2023-12-16 17:59:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1153 transitions. [2023-12-16 17:59:01,064 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1153 transitions. Word has length 150 [2023-12-16 17:59:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:01,064 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 1153 transitions. [2023-12-16 17:59:01,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-12-16 17:59:01,064 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1153 transitions. [2023-12-16 17:59:01,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 17:59:01,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:01,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:01,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:01,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:01,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:01,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:01,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1624323313, now seen corresponding path program 1 times [2023-12-16 17:59:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:01,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784667587] [2023-12-16 17:59:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:01,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:01,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:01,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:01,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:59:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:01,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:01,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:01,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:01,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:01,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784667587] [2023-12-16 17:59:01,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784667587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:01,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:01,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287197334] [2023-12-16 17:59:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:01,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:01,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:01,516 INFO L87 Difference]: Start difference. First operand 639 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-12-16 17:59:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:01,569 INFO L93 Difference]: Finished difference Result 856 states and 1546 transitions. [2023-12-16 17:59:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:01,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 189 [2023-12-16 17:59:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:01,573 INFO L225 Difference]: With dead ends: 856 [2023-12-16 17:59:01,573 INFO L226 Difference]: Without dead ends: 741 [2023-12-16 17:59:01,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:01,575 INFO L413 NwaCegarLoop]: 1309 mSDtfsCounter, 176 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:01,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2419 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-12-16 17:59:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2023-12-16 17:59:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.8035230352303524) internal successors, (1331), 738 states have internal predecessors, (1331), 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) [2023-12-16 17:59:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1331 transitions. [2023-12-16 17:59:01,589 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1331 transitions. Word has length 189 [2023-12-16 17:59:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:01,589 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 1331 transitions. [2023-12-16 17:59:01,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-12-16 17:59:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1331 transitions. [2023-12-16 17:59:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-16 17:59:01,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:01,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:01,598 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 [2023-12-16 17:59:01,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:01,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:01,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:01,797 INFO L85 PathProgramCache]: Analyzing trace with hash 673428184, now seen corresponding path program 1 times [2023-12-16 17:59:01,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:01,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121180469] [2023-12-16 17:59:01,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:01,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:01,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:01,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:01,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:59:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:01,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:01,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:02,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:02,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:02,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121180469] [2023-12-16 17:59:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121180469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:02,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:02,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259666160] [2023-12-16 17:59:02,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:02,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:02,005 INFO L87 Difference]: Start difference. First operand 739 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2023-12-16 17:59:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:02,028 INFO L93 Difference]: Finished difference Result 954 states and 1720 transitions. [2023-12-16 17:59:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2023-12-16 17:59:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:02,031 INFO L225 Difference]: With dead ends: 954 [2023-12-16 17:59:02,031 INFO L226 Difference]: Without dead ends: 839 [2023-12-16 17:59:02,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:02,033 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 185 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:02,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 2443 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-16 17:59:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 837. [2023-12-16 17:59:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.8038277511961722) internal successors, (1508), 836 states have internal predecessors, (1508), 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) [2023-12-16 17:59:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1508 transitions. [2023-12-16 17:59:02,044 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1508 transitions. Word has length 193 [2023-12-16 17:59:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:02,044 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1508 transitions. [2023-12-16 17:59:02,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2023-12-16 17:59:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1508 transitions. [2023-12-16 17:59:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-16 17:59:02,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:02,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:02,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:02,265 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 [2023-12-16 17:59:02,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:02,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:02,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1518936157, now seen corresponding path program 1 times [2023-12-16 17:59:02,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:02,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145129263] [2023-12-16 17:59:02,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:02,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:02,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:02,267 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) [2023-12-16 17:59:02,300 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 [2023-12-16 17:59:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:02,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:02,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:02,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:02,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:02,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145129263] [2023-12-16 17:59:02,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145129263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:02,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:02,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:02,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942175012] [2023-12-16 17:59:02,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:02,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:02,531 INFO L87 Difference]: Start difference. First operand 837 states and 1508 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2023-12-16 17:59:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:02,558 INFO L93 Difference]: Finished difference Result 1426 states and 2569 transitions. [2023-12-16 17:59:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2023-12-16 17:59:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:02,562 INFO L225 Difference]: With dead ends: 1426 [2023-12-16 17:59:02,562 INFO L226 Difference]: Without dead ends: 1115 [2023-12-16 17:59:02,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:02,563 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 176 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:02,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2276 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-16 17:59:02,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1113. [2023-12-16 17:59:02,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.8012589928057554) internal successors, (2003), 1112 states have internal predecessors, (2003), 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) [2023-12-16 17:59:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 2003 transitions. [2023-12-16 17:59:02,579 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 2003 transitions. Word has length 193 [2023-12-16 17:59:02,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:02,580 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 2003 transitions. [2023-12-16 17:59:02,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2023-12-16 17:59:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 2003 transitions. [2023-12-16 17:59:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-16 17:59:02,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:02,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:02,590 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 [2023-12-16 17:59:02,785 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 [2023-12-16 17:59:02,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:02,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:02,786 INFO L85 PathProgramCache]: Analyzing trace with hash 225766999, now seen corresponding path program 1 times [2023-12-16 17:59:02,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:02,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863161221] [2023-12-16 17:59:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:02,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:02,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:02,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:02,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:59:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:03,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:59:03,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:03,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:03,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:03,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863161221] [2023-12-16 17:59:03,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863161221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:03,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:03,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:03,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981544982] [2023-12-16 17:59:03,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:03,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:03,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:03,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:03,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:03,223 INFO L87 Difference]: Start difference. First operand 1113 states and 2003 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-12-16 17:59:03,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:03,318 INFO L93 Difference]: Finished difference Result 3272 states and 5882 transitions. [2023-12-16 17:59:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:59:03,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 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 197 [2023-12-16 17:59:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:03,325 INFO L225 Difference]: With dead ends: 3272 [2023-12-16 17:59:03,325 INFO L226 Difference]: Without dead ends: 2195 [2023-12-16 17:59:03,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:59:03,329 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 2698 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 2482 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:59:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2023-12-16 17:59:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2193. [2023-12-16 17:59:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2192 states have (on average 1.7887773722627738) internal successors, (3921), 2192 states have internal predecessors, (3921), 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) [2023-12-16 17:59:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3921 transitions. [2023-12-16 17:59:03,366 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3921 transitions. Word has length 197 [2023-12-16 17:59:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:03,366 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 3921 transitions. [2023-12-16 17:59:03,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-12-16 17:59:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3921 transitions. [2023-12-16 17:59:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-16 17:59:03,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:03,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:03,388 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 (7)] Ended with exit code 0 [2023-12-16 17:59:03,573 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 [2023-12-16 17:59:03,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:03,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:03,574 INFO L85 PathProgramCache]: Analyzing trace with hash -196934827, now seen corresponding path program 1 times [2023-12-16 17:59:03,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:03,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642692690] [2023-12-16 17:59:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:03,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:03,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:03,576 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) [2023-12-16 17:59:03,577 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 [2023-12-16 17:59:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:03,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:03,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:03,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:03,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:03,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642692690] [2023-12-16 17:59:03,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642692690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:03,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:03,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:03,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900293367] [2023-12-16 17:59:03,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:03,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:03,843 INFO L87 Difference]: Start difference. First operand 2193 states and 3921 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-12-16 17:59:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:03,886 INFO L93 Difference]: Finished difference Result 4399 states and 7865 transitions. [2023-12-16 17:59:03,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 197 [2023-12-16 17:59:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:03,896 INFO L225 Difference]: With dead ends: 4399 [2023-12-16 17:59:03,896 INFO L226 Difference]: Without dead ends: 3233 [2023-12-16 17:59:03,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:03,900 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 168 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:03,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2277 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2023-12-16 17:59:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3231. [2023-12-16 17:59:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3231 states, 3230 states have (on average 1.7842105263157895) internal successors, (5763), 3230 states have internal predecessors, (5763), 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) [2023-12-16 17:59:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3231 states to 3231 states and 5763 transitions. [2023-12-16 17:59:03,975 INFO L78 Accepts]: Start accepts. Automaton has 3231 states and 5763 transitions. Word has length 197 [2023-12-16 17:59:03,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:03,976 INFO L495 AbstractCegarLoop]: Abstraction has 3231 states and 5763 transitions. [2023-12-16 17:59:03,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-12-16 17:59:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3231 states and 5763 transitions. [2023-12-16 17:59:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-16 17:59:03,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:03,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:03,995 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 [2023-12-16 17:59:04,183 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 [2023-12-16 17:59:04,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:04,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1474884745, now seen corresponding path program 1 times [2023-12-16 17:59:04,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:04,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204479954] [2023-12-16 17:59:04,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:04,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:04,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:04,187 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) [2023-12-16 17:59:04,187 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 [2023-12-16 17:59:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:04,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:59:04,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:04,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:04,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204479954] [2023-12-16 17:59:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204479954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:04,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:04,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73139302] [2023-12-16 17:59:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:04,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:04,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:04,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:04,714 INFO L87 Difference]: Start difference. First operand 3231 states and 5763 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-12-16 17:59:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:04,839 INFO L93 Difference]: Finished difference Result 9492 states and 16912 transitions. [2023-12-16 17:59:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:59:04,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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 201 [2023-12-16 17:59:04,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:04,858 INFO L225 Difference]: With dead ends: 9492 [2023-12-16 17:59:04,858 INFO L226 Difference]: Without dead ends: 6370 [2023-12-16 17:59:04,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:59:04,865 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 2572 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:04,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 2532 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:59:04,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2023-12-16 17:59:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 6368. [2023-12-16 17:59:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6368 states, 6367 states have (on average 1.7710067535731113) internal successors, (11276), 6367 states have internal predecessors, (11276), 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) [2023-12-16 17:59:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6368 states to 6368 states and 11276 transitions. [2023-12-16 17:59:05,015 INFO L78 Accepts]: Start accepts. Automaton has 6368 states and 11276 transitions. Word has length 201 [2023-12-16 17:59:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:05,015 INFO L495 AbstractCegarLoop]: Abstraction has 6368 states and 11276 transitions. [2023-12-16 17:59:05,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-12-16 17:59:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6368 states and 11276 transitions. [2023-12-16 17:59:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-16 17:59:05,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:05,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:05,025 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:05,225 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 [2023-12-16 17:59:05,226 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:05,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1540218873, now seen corresponding path program 1 times [2023-12-16 17:59:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763247941] [2023-12-16 17:59:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:05,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:05,228 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) [2023-12-16 17:59:05,264 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 [2023-12-16 17:59:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:05,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:05,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:05,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:05,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:05,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763247941] [2023-12-16 17:59:05,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763247941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:05,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:05,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663015195] [2023-12-16 17:59:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:05,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:05,475 INFO L87 Difference]: Start difference. First operand 6368 states and 11276 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-12-16 17:59:05,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:05,541 INFO L93 Difference]: Finished difference Result 14604 states and 25798 transitions. [2023-12-16 17:59:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:05,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 201 [2023-12-16 17:59:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:05,568 INFO L225 Difference]: With dead ends: 14604 [2023-12-16 17:59:05,568 INFO L226 Difference]: Without dead ends: 10222 [2023-12-16 17:59:05,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:05,577 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 160 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:05,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2278 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10222 states. [2023-12-16 17:59:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10222 to 10220. [2023-12-16 17:59:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10220 states, 10219 states have (on average 1.7598590860162442) internal successors, (17984), 10219 states have internal predecessors, (17984), 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) [2023-12-16 17:59:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10220 states to 10220 states and 17984 transitions. [2023-12-16 17:59:05,747 INFO L78 Accepts]: Start accepts. Automaton has 10220 states and 17984 transitions. Word has length 201 [2023-12-16 17:59:05,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:05,748 INFO L495 AbstractCegarLoop]: Abstraction has 10220 states and 17984 transitions. [2023-12-16 17:59:05,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-12-16 17:59:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10220 states and 17984 transitions. [2023-12-16 17:59:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 17:59:05,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:05,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:05,762 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 [2023-12-16 17:59:05,962 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 [2023-12-16 17:59:05,963 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:05,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -763316807, now seen corresponding path program 1 times [2023-12-16 17:59:05,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:05,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139177016] [2023-12-16 17:59:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:05,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:05,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:05,965 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) [2023-12-16 17:59:05,984 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 [2023-12-16 17:59:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:06,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:06,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:06,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:06,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:06,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139177016] [2023-12-16 17:59:06,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139177016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:06,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:06,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254450398] [2023-12-16 17:59:06,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:06,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:06,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:06,266 INFO L87 Difference]: Start difference. First operand 10220 states and 17984 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-12-16 17:59:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:06,354 INFO L93 Difference]: Finished difference Result 25680 states and 45058 transitions. [2023-12-16 17:59:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:06,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 205 [2023-12-16 17:59:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:06,391 INFO L225 Difference]: With dead ends: 25680 [2023-12-16 17:59:06,391 INFO L226 Difference]: Without dead ends: 17446 [2023-12-16 17:59:06,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:06,405 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 152 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:06,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 2279 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17446 states. [2023-12-16 17:59:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17446 to 17444. [2023-12-16 17:59:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17444 states, 17443 states have (on average 1.7478644728544401) internal successors, (30488), 17443 states have internal predecessors, (30488), 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) [2023-12-16 17:59:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17444 states to 17444 states and 30488 transitions. [2023-12-16 17:59:06,787 INFO L78 Accepts]: Start accepts. Automaton has 17444 states and 30488 transitions. Word has length 205 [2023-12-16 17:59:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:06,788 INFO L495 AbstractCegarLoop]: Abstraction has 17444 states and 30488 transitions. [2023-12-16 17:59:06,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-12-16 17:59:06,788 INFO L276 IsEmpty]: Start isEmpty. Operand 17444 states and 30488 transitions. [2023-12-16 17:59:06,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 17:59:06,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:06,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:06,800 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 (11)] Ended with exit code 0 [2023-12-16 17:59:06,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:06,998 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:06,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:06,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2102705045, now seen corresponding path program 1 times [2023-12-16 17:59:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637959658] [2023-12-16 17:59:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:06,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:07,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:07,000 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:07,034 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 (12)] Waiting until timeout for monitored process [2023-12-16 17:59:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:07,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:59:07,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:08,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:08,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:08,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637959658] [2023-12-16 17:59:08,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637959658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:08,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:08,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:59:08,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681084715] [2023-12-16 17:59:08,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:08,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:59:08,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:59:08,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:59:08,067 INFO L87 Difference]: Start difference. First operand 17444 states and 30488 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 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) [2023-12-16 17:59:08,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:08,599 INFO L93 Difference]: Finished difference Result 76256 states and 133902 transitions. [2023-12-16 17:59:08,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:59:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 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 [2023-12-16 17:59:08,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:08,704 INFO L225 Difference]: With dead ends: 76256 [2023-12-16 17:59:08,705 INFO L226 Difference]: Without dead ends: 60798 [2023-12-16 17:59:08,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:59:08,722 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 1422 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:08,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 3344 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:59:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60798 states. [2023-12-16 17:59:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60798 to 40514. [2023-12-16 17:59:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40514 states, 40513 states have (on average 1.7394416607015033) internal successors, (70470), 40513 states have internal predecessors, (70470), 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) [2023-12-16 17:59:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40514 states to 40514 states and 70470 transitions. [2023-12-16 17:59:09,797 INFO L78 Accepts]: Start accepts. Automaton has 40514 states and 70470 transitions. Word has length 209 [2023-12-16 17:59:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:09,798 INFO L495 AbstractCegarLoop]: Abstraction has 40514 states and 70470 transitions. [2023-12-16 17:59:09,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 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) [2023-12-16 17:59:09,798 INFO L276 IsEmpty]: Start isEmpty. Operand 40514 states and 70470 transitions. [2023-12-16 17:59:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 17:59:09,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:09,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:09,809 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:10,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:10,009 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:10,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:10,010 INFO L85 PathProgramCache]: Analyzing trace with hash -833089824, now seen corresponding path program 1 times [2023-12-16 17:59:10,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:10,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817613707] [2023-12-16 17:59:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:10,011 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:10,013 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 (13)] Waiting until timeout for monitored process [2023-12-16 17:59:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:10,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:59:10,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:10,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:10,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:10,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817613707] [2023-12-16 17:59:10,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817613707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:10,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:10,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:59:10,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677140398] [2023-12-16 17:59:10,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:10,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:10,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:10,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:10,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:10,411 INFO L87 Difference]: Start difference. First operand 40514 states and 70470 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2023-12-16 17:59:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:11,100 INFO L93 Difference]: Finished difference Result 114014 states and 199055 transitions. [2023-12-16 17:59:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:59:11,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 210 [2023-12-16 17:59:11,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:11,205 INFO L225 Difference]: With dead ends: 114014 [2023-12-16 17:59:11,205 INFO L226 Difference]: Without dead ends: 75486 [2023-12-16 17:59:11,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:11,233 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 537 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:11,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 2461 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:59:11,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75486 states. [2023-12-16 17:59:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75486 to 65886. [2023-12-16 17:59:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65886 states, 65885 states have (on average 1.739060484176975) internal successors, (114578), 65885 states have internal predecessors, (114578), 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) [2023-12-16 17:59:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65886 states to 65886 states and 114578 transitions. [2023-12-16 17:59:12,294 INFO L78 Accepts]: Start accepts. Automaton has 65886 states and 114578 transitions. Word has length 210 [2023-12-16 17:59:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:12,294 INFO L495 AbstractCegarLoop]: Abstraction has 65886 states and 114578 transitions. [2023-12-16 17:59:12,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2023-12-16 17:59:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 65886 states and 114578 transitions. [2023-12-16 17:59:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 17:59:12,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:12,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:12,317 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:12,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:12,507 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:12,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:12,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1690175862, now seen corresponding path program 1 times [2023-12-16 17:59:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286065194] [2023-12-16 17:59:12,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:12,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:12,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:12,509 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:12,512 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 (14)] Waiting until timeout for monitored process [2023-12-16 17:59:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:12,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:12,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:12,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:12,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:12,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286065194] [2023-12-16 17:59:12,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286065194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:12,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:12,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454473730] [2023-12-16 17:59:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:12,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:12,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:12,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:12,990 INFO L87 Difference]: Start difference. First operand 65886 states and 114578 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-12-16 17:59:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:13,665 INFO L93 Difference]: Finished difference Result 129308 states and 224854 transitions. [2023-12-16 17:59:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:13,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2023-12-16 17:59:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:13,797 INFO L225 Difference]: With dead ends: 129308 [2023-12-16 17:59:13,797 INFO L226 Difference]: Without dead ends: 94390 [2023-12-16 17:59:13,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:13,835 INFO L413 NwaCegarLoop]: 1242 mSDtfsCounter, 161 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:13,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2374 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94390 states. [2023-12-16 17:59:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94390 to 94388. [2023-12-16 17:59:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94388 states, 94387 states have (on average 1.7291788064034241) internal successors, (163212), 94387 states have internal predecessors, (163212), 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) [2023-12-16 17:59:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94388 states to 94388 states and 163212 transitions. [2023-12-16 17:59:15,344 INFO L78 Accepts]: Start accepts. Automaton has 94388 states and 163212 transitions. Word has length 210 [2023-12-16 17:59:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:15,345 INFO L495 AbstractCegarLoop]: Abstraction has 94388 states and 163212 transitions. [2023-12-16 17:59:15,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-12-16 17:59:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 94388 states and 163212 transitions. [2023-12-16 17:59:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 17:59:15,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:15,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:15,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 17:59:15,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:15,727 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:15,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1070579210, now seen corresponding path program 1 times [2023-12-16 17:59:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:15,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397384794] [2023-12-16 17:59:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:15,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:15,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:15,730 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:15,732 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 (15)] Waiting until timeout for monitored process [2023-12-16 17:59:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:15,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:15,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:15,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:15,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:15,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397384794] [2023-12-16 17:59:15,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397384794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:15,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:15,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:15,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044192043] [2023-12-16 17:59:15,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:15,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:15,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:15,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:15,959 INFO L87 Difference]: Start difference. First operand 94388 states and 163212 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-12-16 17:59:17,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:17,067 INFO L93 Difference]: Finished difference Result 184340 states and 319150 transitions. [2023-12-16 17:59:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2023-12-16 17:59:17,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:17,301 INFO L225 Difference]: With dead ends: 184340 [2023-12-16 17:59:17,301 INFO L226 Difference]: Without dead ends: 134036 [2023-12-16 17:59:17,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:17,343 INFO L413 NwaCegarLoop]: 1310 mSDtfsCounter, 177 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:17,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2440 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134036 states. [2023-12-16 17:59:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134036 to 134034. [2023-12-16 17:59:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134034 states, 134033 states have (on average 1.7215909514820977) internal successors, (230750), 134033 states have internal predecessors, (230750), 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) [2023-12-16 17:59:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134034 states to 134034 states and 230750 transitions. [2023-12-16 17:59:19,687 INFO L78 Accepts]: Start accepts. Automaton has 134034 states and 230750 transitions. Word has length 210 [2023-12-16 17:59:19,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:19,688 INFO L495 AbstractCegarLoop]: Abstraction has 134034 states and 230750 transitions. [2023-12-16 17:59:19,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-12-16 17:59:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 134034 states and 230750 transitions. [2023-12-16 17:59:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 17:59:19,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:19,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:19,697 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:19,895 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:19,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1391604830, now seen corresponding path program 1 times [2023-12-16 17:59:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:19,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034195840] [2023-12-16 17:59:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:19,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:19,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:19,897 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:19,905 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 (16)] Waiting until timeout for monitored process [2023-12-16 17:59:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:20,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:20,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:20,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:20,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:20,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034195840] [2023-12-16 17:59:20,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034195840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:20,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:20,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:20,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556645109] [2023-12-16 17:59:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:20,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:20,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:20,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:20,154 INFO L87 Difference]: Start difference. First operand 134034 states and 230750 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 17:59:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:22,110 INFO L93 Difference]: Finished difference Result 283800 states and 488822 transitions. [2023-12-16 17:59:22,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:22,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 211 [2023-12-16 17:59:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:22,543 INFO L225 Difference]: With dead ends: 283800 [2023-12-16 17:59:22,543 INFO L226 Difference]: Without dead ends: 200154 [2023-12-16 17:59:22,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:22,643 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 153 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:22,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200154 states. [2023-12-16 17:59:25,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200154 to 200152. [2023-12-16 17:59:25,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200152 states, 200151 states have (on average 1.71118805301997) internal successors, (342496), 200151 states have internal predecessors, (342496), 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) [2023-12-16 17:59:26,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200152 states to 200152 states and 342496 transitions. [2023-12-16 17:59:26,222 INFO L78 Accepts]: Start accepts. Automaton has 200152 states and 342496 transitions. Word has length 211 [2023-12-16 17:59:26,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:26,223 INFO L495 AbstractCegarLoop]: Abstraction has 200152 states and 342496 transitions. [2023-12-16 17:59:26,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 17:59:26,223 INFO L276 IsEmpty]: Start isEmpty. Operand 200152 states and 342496 transitions. [2023-12-16 17:59:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 17:59:26,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:26,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:26,230 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:59:26,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:26,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:26,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash -124271884, now seen corresponding path program 1 times [2023-12-16 17:59:26,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:26,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405260356] [2023-12-16 17:59:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:26,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:26,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:26,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:26,437 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 (17)] Waiting until timeout for monitored process [2023-12-16 17:59:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:26,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:59:26,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:26,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:26,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:26,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405260356] [2023-12-16 17:59:26,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405260356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:26,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:26,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:59:26,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896518958] [2023-12-16 17:59:26,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:26,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:26,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:26,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:26,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:26,798 INFO L87 Difference]: Start difference. First operand 200152 states and 342496 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-12-16 17:59:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:30,238 INFO L93 Difference]: Finished difference Result 574656 states and 985317 transitions. [2023-12-16 17:59:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:59:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 211 [2023-12-16 17:59:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:31,114 INFO L225 Difference]: With dead ends: 574656 [2023-12-16 17:59:31,114 INFO L226 Difference]: Without dead ends: 376744 [2023-12-16 17:59:31,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:31,257 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 372 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:31,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 3582 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:59:31,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376744 states. [2023-12-16 17:59:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376744 to 329700. [2023-12-16 17:59:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329700 states, 329699 states have (on average 1.7048823320665212) internal successors, (562098), 329699 states have internal predecessors, (562098), 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) [2023-12-16 17:59:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329700 states to 329700 states and 562098 transitions. [2023-12-16 17:59:37,632 INFO L78 Accepts]: Start accepts. Automaton has 329700 states and 562098 transitions. Word has length 211 [2023-12-16 17:59:37,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:37,632 INFO L495 AbstractCegarLoop]: Abstraction has 329700 states and 562098 transitions. [2023-12-16 17:59:37,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-12-16 17:59:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 329700 states and 562098 transitions. [2023-12-16 17:59:37,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 17:59:37,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:37,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:37,643 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 (17)] Ended with exit code 0 [2023-12-16 17:59:37,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:37,844 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:37,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:37,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1650932230, now seen corresponding path program 1 times [2023-12-16 17:59:37,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:37,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194188000] [2023-12-16 17:59:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:37,846 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:37,851 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 (18)] Waiting until timeout for monitored process [2023-12-16 17:59:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:38,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:59:38,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:38,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:38,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:38,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194188000] [2023-12-16 17:59:38,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194188000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:38,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:38,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:59:38,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848673897] [2023-12-16 17:59:38,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:38,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:59:38,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:38,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:59:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:38,076 INFO L87 Difference]: Start difference. First operand 329700 states and 562098 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 17:59:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:59:42,230 INFO L93 Difference]: Finished difference Result 649404 states and 1108480 transitions. [2023-12-16 17:59:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:59:42,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 211 [2023-12-16 17:59:42,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:59:43,537 INFO L225 Difference]: With dead ends: 649404 [2023-12-16 17:59:43,537 INFO L226 Difference]: Without dead ends: 469626 [2023-12-16 17:59:43,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:59:43,687 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 169 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:43,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2429 Invalid, 11 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:59:44,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469626 states. [2023-12-16 17:59:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469626 to 469624. [2023-12-16 17:59:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469624 states, 469623 states have (on average 1.6964458725403142) internal successors, (796690), 469623 states have internal predecessors, (796690), 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) [2023-12-16 17:59:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469624 states to 469624 states and 796690 transitions. [2023-12-16 17:59:54,067 INFO L78 Accepts]: Start accepts. Automaton has 469624 states and 796690 transitions. Word has length 211 [2023-12-16 17:59:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:59:54,068 INFO L495 AbstractCegarLoop]: Abstraction has 469624 states and 796690 transitions. [2023-12-16 17:59:54,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 17:59:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 469624 states and 796690 transitions. [2023-12-16 17:59:54,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 17:59:54,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:59:54,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:54,075 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 (18)] Ended with exit code 0 [2023-12-16 17:59:54,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:54,277 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:59:54,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:59:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 379699529, now seen corresponding path program 1 times [2023-12-16 17:59:54,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:59:54,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771929672] [2023-12-16 17:59:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:59:54,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:54,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:59:54,279 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:59:54,280 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 (19)] Waiting until timeout for monitored process [2023-12-16 17:59:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:59:54,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:59:54,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:59:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:59:54,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:59:54,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:59:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771929672] [2023-12-16 17:59:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771929672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:59:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:59:54,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:59:54,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730480356] [2023-12-16 17:59:54,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:59:54,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:59:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:59:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:59:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:54,606 INFO L87 Difference]: Start difference. First operand 469624 states and 796690 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) Received shutdown request... [2023-12-16 17:59:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:59:55,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:59:55,680 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 351 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:59:55,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 3439 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:59:55,681 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:59:55,687 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 (19)] Ended with exit code 0 [2023-12-16 17:59:55,710 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 (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:59:55,710 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:59:55,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:59:55,886 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (469624states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (177150 states constructed, input type IntersectNwa). [2023-12-16 17:59:55,889 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:59:55,891 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:59:55,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:59:55 BoogieIcfgContainer [2023-12-16 17:59:55,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:59:55,892 INFO L158 Benchmark]: Toolchain (without parser) took 58108.09ms. Allocated memory was 202.4MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 137.7MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-16 17:59:55,892 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:59:55,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.86ms. Allocated memory was 202.4MB in the beginning and 285.2MB in the end (delta: 82.8MB). Free memory was 137.5MB in the beginning and 229.2MB in the end (delta: -91.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 17:59:55,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.72ms. Allocated memory is still 285.2MB. Free memory was 229.2MB in the beginning and 221.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:59:55,893 INFO L158 Benchmark]: Boogie Preprocessor took 85.19ms. Allocated memory is still 285.2MB. Free memory was 221.8MB in the beginning and 211.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 17:59:55,893 INFO L158 Benchmark]: RCFGBuilder took 1488.37ms. Allocated memory is still 285.2MB. Free memory was 211.3MB in the beginning and 137.8MB in the end (delta: 73.5MB). Peak memory consumption was 74.1MB. Max. memory is 8.0GB. [2023-12-16 17:59:55,893 INFO L158 Benchmark]: TraceAbstraction took 55978.22ms. Allocated memory was 285.2MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 137.3MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2023-12-16 17:59:55,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 465.86ms. Allocated memory was 202.4MB in the beginning and 285.2MB in the end (delta: 82.8MB). Free memory was 137.5MB in the beginning and 229.2MB in the end (delta: -91.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.72ms. Allocated memory is still 285.2MB. Free memory was 229.2MB in the beginning and 221.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.19ms. Allocated memory is still 285.2MB. Free memory was 221.8MB in the beginning and 211.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1488.37ms. Allocated memory is still 285.2MB. Free memory was 211.3MB in the beginning and 137.8MB in the end (delta: 73.5MB). Peak memory consumption was 74.1MB. Max. memory is 8.0GB. * TraceAbstraction took 55978.22ms. Allocated memory was 285.2MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 137.3MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 2.8GB. 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: 2758]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2758). Cancelled while NwaCegarLoop was constructing difference of abstraction (469624states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (177150 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 641 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9629 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9629 mSDsluCounter, 46158 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24477 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 514 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 21681 mSDtfsCounter, 514 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3544 GetRequests, 3515 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=469624occurred in iteration=17, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 76952 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 3560 NumberOfCodeBlocks, 3560 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3542 ConstructedInterpolants, 0 QuantifiedInterpolants, 8107 SizeOfPredicates, 10 NumberOfNonLiveVariables, 8096 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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