/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:44:43,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:44:43,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 20:44:43,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:44:43,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:44:43,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:44:43,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:44:43,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:44:43,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:44:43,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:44:43,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:44:43,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:44:43,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:44:43,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:44:43,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:44:43,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:44:43,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:44:43,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:44:43,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:44:43,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:44:43,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:44:43,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:44:43,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:44:43,235 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:44:43,235 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:44:43,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:44:43,236 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:44:43,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:44:43,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:44:43,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:44:43,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:44:43,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:44:43,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:44:43,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:44:43,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:44:43,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:44:43,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:44:43,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:44:43,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:44:43,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:44:43,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:44:43,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:44:43,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:44:43,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:44:43,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c [2024-11-05 20:44:44,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:44:45,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:44:45,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_3.c [2024-11-05 20:44:45,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777c469de/1a5b7c70ff6645a6aa61fa57c9c3302d/FLAG9f3bf8919 [2024-11-05 20:44:45,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777c469de/1a5b7c70ff6645a6aa61fa57c9c3302d [2024-11-05 20:44:45,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:44:45,097 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:44:45,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:44:45,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:44:45,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:44:45,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcbb6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45, skipping insertion in model container [2024-11-05 20:44:45,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:44:45,304 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_3.c[604,617] [2024-11-05 20:44:45,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:44:45,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:44:45,349 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_3.c[604,617] [2024-11-05 20:44:45,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:44:45,376 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:44:45,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45 WrapperNode [2024-11-05 20:44:45,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:44:45,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:44:45,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:44:45,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:44:45,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,415 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-11-05 20:44:45,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:44:45,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:44:45,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:44:45,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:44:45,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,443 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]. [2024-11-05 20:44:45,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:44:45,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:44:45,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:44:45,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:44:45,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (1/1) ... [2024-11-05 20:44:45,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:44:45,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:44:45,486 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) [2024-11-05 20:44:45,489 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 [2024-11-05 20:44:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:44:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-05 20:44:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-05 20:44:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure g [2024-11-05 20:44:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2024-11-05 20:44:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:44:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:44:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:44:45,573 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:44:45,575 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:44:46,418 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-05 20:44:46,418 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:44:46,432 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:44:46,433 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 20:44:46,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:44:46 BoogieIcfgContainer [2024-11-05 20:44:46,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:44:46,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:44:46,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:44:46,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:44:46,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:44:45" (1/3) ... [2024-11-05 20:44:46,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b4c087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:44:46, skipping insertion in model container [2024-11-05 20:44:46,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:44:45" (2/3) ... [2024-11-05 20:44:46,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b4c087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:44:46, skipping insertion in model container [2024-11-05 20:44:46,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:44:46" (3/3) ... [2024-11-05 20:44:46,441 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_3.c [2024-11-05 20:44:46,456 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:44:46,456 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:44:46,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:44:46,508 INFO L333 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, 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;@35d7f140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:44:46,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:44:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-05 20:44:46,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-05 20:44:46,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:44:46,518 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:44:46,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:44:46,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:44:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash -791121696, now seen corresponding path program 1 times [2024-11-05 20:44:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:44:46,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626152000] [2024-11-05 20:44:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:44:46,530 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 [2024-11-05 20:44:46,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:44:46,532 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) [2024-11-05 20:44:46,534 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 [2024-11-05 20:44:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:44:46,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-05 20:44:46,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:44:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-05 20:44:46,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:44:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-05 20:44:46,875 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:44:46,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626152000] [2024-11-05 20:44:46,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1626152000] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:44:46,879 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:44:46,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-05 20:44:46,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139015548] [2024-11-05 20:44:46,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:44:46,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 20:44:46,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:44:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 20:44:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 20:44:46,911 INFO L87 Difference]: Start difference. First operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 20:44:47,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:44:47,742 INFO L93 Difference]: Finished difference Result 75 states and 98 transitions. [2024-11-05 20:44:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 20:44:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-05 20:44:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:44:47,751 INFO L225 Difference]: With dead ends: 75 [2024-11-05 20:44:47,751 INFO L226 Difference]: Without dead ends: 45 [2024-11-05 20:44:47,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 20:44:47,757 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 21 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 20:44:47,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 72 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 20:44:47,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-05 20:44:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-05 20:44:47,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-05 20:44:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2024-11-05 20:44:47,804 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 26 [2024-11-05 20:44:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:44:47,807 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2024-11-05 20:44:47,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-05 20:44:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2024-11-05 20:44:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-05 20:44:47,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:44:47,813 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:44:47,823 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 [2024-11-05 20:44:48,013 WARN L453 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 [2024-11-05 20:44:48,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:44:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:44:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1297373878, now seen corresponding path program 1 times [2024-11-05 20:44:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:44:48,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572485333] [2024-11-05 20:44:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:44:48,016 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 [2024-11-05 20:44:48,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:44:48,020 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) [2024-11-05 20:44:48,021 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 [2024-11-05 20:44:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:44:48,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 20:44:48,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:44:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-05 20:44:48,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:44:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-05 20:44:49,106 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:44:49,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572485333] [2024-11-05 20:44:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1572485333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 20:44:49,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 20:44:49,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-05 20:44:49,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316611275] [2024-11-05 20:44:49,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 20:44:49,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:44:49,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:44:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:44:49,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:44:49,112 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-05 20:44:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:44:52,188 INFO L93 Difference]: Finished difference Result 97 states and 126 transitions. [2024-11-05 20:44:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-05 20:44:52,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 74 [2024-11-05 20:44:52,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:44:52,204 INFO L225 Difference]: With dead ends: 97 [2024-11-05 20:44:52,204 INFO L226 Difference]: Without dead ends: 93 [2024-11-05 20:44:52,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-05 20:44:52,205 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 35 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-05 20:44:52,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 236 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-05 20:44:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-05 20:44:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-05 20:44:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.0161290322580645) internal successors, (63), 62 states have internal predecessors, (63), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-05 20:44:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2024-11-05 20:44:52,230 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 74 [2024-11-05 20:44:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:44:52,230 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2024-11-05 20:44:52,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-05 20:44:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2024-11-05 20:44:52,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-05 20:44:52,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:44:52,244 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:44:52,264 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 [2024-11-05 20:44:52,445 WARN L453 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 [2024-11-05 20:44:52,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:44:52,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:44:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1141480862, now seen corresponding path program 2 times [2024-11-05 20:44:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:44:52,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597758196] [2024-11-05 20:44:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:44:52,447 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 [2024-11-05 20:44:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:44:52,448 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) [2024-11-05 20:44:52,449 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 [2024-11-05 20:44:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:44:53,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 20:44:53,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:44:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-05 20:44:54,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:44:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-05 20:44:54,755 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:44:54,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597758196] [2024-11-05 20:44:54,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1597758196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 20:44:54,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 20:44:54,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-05 20:44:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138743534] [2024-11-05 20:44:54,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 20:44:54,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-05 20:44:54,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:44:54,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-05 20:44:54,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-05 20:44:54,758 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 13 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 13 states have call predecessors, (52), 13 states have call successors, (52) [2024-11-05 20:45:01,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 20:45:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:45:05,714 INFO L93 Difference]: Finished difference Result 193 states and 258 transitions. [2024-11-05 20:45:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-05 20:45:05,727 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 13 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 13 states have call predecessors, (52), 13 states have call successors, (52) Word has length 170 [2024-11-05 20:45:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:45:05,730 INFO L225 Difference]: With dead ends: 193 [2024-11-05 20:45:05,730 INFO L226 Difference]: Without dead ends: 189 [2024-11-05 20:45:05,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2024-11-05 20:45:05,732 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 56 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-05 20:45:05,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 737 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-05 20:45:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-05 20:45:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-05 20:45:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.007936507936508) internal successors, (127), 126 states have internal predecessors, (127), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-05 20:45:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 247 transitions. [2024-11-05 20:45:05,759 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 247 transitions. Word has length 170 [2024-11-05 20:45:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:45:05,759 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 247 transitions. [2024-11-05 20:45:05,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 13 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 13 states have call predecessors, (52), 13 states have call successors, (52) [2024-11-05 20:45:05,760 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 247 transitions. [2024-11-05 20:45:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-05 20:45:05,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:45:05,765 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:45:05,826 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 [2024-11-05 20:45:05,966 WARN L453 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 [2024-11-05 20:45:05,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:45:05,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:45:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1367129670, now seen corresponding path program 3 times [2024-11-05 20:45:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:45:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909052244] [2024-11-05 20:45:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:45:05,968 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 [2024-11-05 20:45:05,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:45:05,971 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) [2024-11-05 20:45:05,972 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 [2024-11-05 20:45:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:45:08,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-05 20:45:08,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:45:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3716 backedges. 0 proven. 1106 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2024-11-05 20:45:09,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:45:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3716 backedges. 0 proven. 1106 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2024-11-05 20:45:11,244 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:45:11,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909052244] [2024-11-05 20:45:11,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [909052244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 20:45:11,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 20:45:11,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-05 20:45:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868468938] [2024-11-05 20:45:11,247 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 20:45:11,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-05 20:45:11,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:45:11,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-05 20:45:11,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=706, Unknown=0, NotChecked=0, Total=992 [2024-11-05 20:45:11,255 INFO L87 Difference]: Start difference. First operand 189 states and 247 transitions. Second operand has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 29 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 29 states have call predecessors, (116), 29 states have call successors, (116) [2024-11-05 20:45:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:45:35,933 INFO L93 Difference]: Finished difference Result 385 states and 522 transitions. [2024-11-05 20:45:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-05 20:45:35,947 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 29 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 29 states have call predecessors, (116), 29 states have call successors, (116) Word has length 362 [2024-11-05 20:45:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:45:35,952 INFO L225 Difference]: With dead ends: 385 [2024-11-05 20:45:35,952 INFO L226 Difference]: Without dead ends: 381 [2024-11-05 20:45:35,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 692 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=734, Invalid=1336, Unknown=0, NotChecked=0, Total=2070 [2024-11-05 20:45:35,954 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 119 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2024-11-05 20:45:35,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2919 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2024-11-05 20:45:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-05 20:45:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-05 20:45:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 254 states have (on average 1.0039370078740157) internal successors, (255), 254 states have internal predecessors, (255), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-05 20:45:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 503 transitions. [2024-11-05 20:45:36,004 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 503 transitions. Word has length 362 [2024-11-05 20:45:36,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:45:36,010 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 503 transitions. [2024-11-05 20:45:36,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 29 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 29 states have call predecessors, (116), 29 states have call successors, (116) [2024-11-05 20:45:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 503 transitions. [2024-11-05 20:45:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2024-11-05 20:45:36,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:45:36,026 INFO L215 NwaCegarLoop]: trace histogram [62, 62, 62, 62, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:45:36,122 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 [2024-11-05 20:45:36,227 WARN L453 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 [2024-11-05 20:45:36,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:45:36,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:45:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1572880490, now seen corresponding path program 4 times [2024-11-05 20:45:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:45:36,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832822726] [2024-11-05 20:45:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:45:36,229 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 [2024-11-05 20:45:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:45:36,231 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) [2024-11-05 20:45:36,232 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 [2024-11-05 20:45:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:45:42,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-05 20:45:42,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:45:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16596 backedges. 0 proven. 5250 refuted. 0 times theorem prover too weak. 11346 trivial. 0 not checked. [2024-11-05 20:45:43,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:45:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 16596 backedges. 0 proven. 5250 refuted. 0 times theorem prover too weak. 11346 trivial. 0 not checked. [2024-11-05 20:45:47,352 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:45:47,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832822726] [2024-11-05 20:45:47,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1832822726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 20:45:47,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 20:45:47,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2024-11-05 20:45:47,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777828486] [2024-11-05 20:45:47,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 20:45:47,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-05 20:45:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:45:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-05 20:45:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=2946, Unknown=0, NotChecked=0, Total=4032 [2024-11-05 20:45:47,359 INFO L87 Difference]: Start difference. First operand 381 states and 503 transitions. Second operand has 64 states, 64 states have (on average 7.75) internal successors, (496), 64 states have internal predecessors, (496), 61 states have call successors, (244), 1 states have call predecessors, (244), 1 states have return successors, (244), 61 states have call predecessors, (244), 61 states have call successors, (244)