/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/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:32:30,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:32:30,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:32:30,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:32:30,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:32:30,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:32:30,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:32:30,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:32:30,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:32:30,897 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:32:30,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:32:30,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:32:30,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:32:30,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:32:30,900 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:32:30,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:32:30,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:32:30,901 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:32:30,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:32:30,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:32:30,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:32:30,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:32:30,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:32:30,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:32:30,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:32:30,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:32:30,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:32:30,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:32:30,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:32:30,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:32:30,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:32:30,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:32:30,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:32:30,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:32:30,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:32:30,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:32:30,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:32:30,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:32:30,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:32:30,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:32:30,908 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:32:30,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:32:31,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:32:31,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:32:31,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:32:31,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:32:31,135 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:32:31,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2023-12-22 02:32:32,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:32:32,481 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:32:32,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2023-12-22 02:32:32,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150ed4183/e02561d246114d2bb6cd9dbb571cabf2/FLAGc51c2baa5 [2023-12-22 02:32:32,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150ed4183/e02561d246114d2bb6cd9dbb571cabf2 [2023-12-22 02:32:32,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:32:32,509 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:32:32,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:32:32,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:32:32,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:32:32,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:32,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45571be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32, skipping insertion in model container [2023-12-22 02:32:32,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:32,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:32:32,696 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[913,926] [2023-12-22 02:32:32,743 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2023-12-22 02:32:32,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:32:32,886 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:32:32,895 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[913,926] [2023-12-22 02:32:32,914 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2023-12-22 02:32:32,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:32:32,977 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:32:32,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32 WrapperNode [2023-12-22 02:32:32,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:32:32,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:32:32,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:32:32,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:32:32,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,049 INFO L138 Inliner]: procedures = 75, calls = 87, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1100 [2023-12-22 02:32:33,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:32:33,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:32:33,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:32:33,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:32:33,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,114 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]. [2023-12-22 02:32:33,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:32:33,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:32:33,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:32:33,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:32:33,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (1/1) ... [2023-12-22 02:32:33,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:32:33,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:32:33,212 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) [2023-12-22 02:32:33,280 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 [2023-12-22 02:32:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:32:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:32:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:32:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-22 02:32:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-22 02:32:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:32:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:32:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:32:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:32:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:32:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:32:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:32:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:32:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:32:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:32:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:32:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:32:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:32:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:32:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:32:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:32:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:32:33,398 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:32:33,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:32:34,156 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:32:34,211 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:32:34,211 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-22 02:32:34,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:32:34 BoogieIcfgContainer [2023-12-22 02:32:34,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:32:34,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:32:34,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:32:34,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:32:34,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:32:32" (1/3) ... [2023-12-22 02:32:34,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533edcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:32:34, skipping insertion in model container [2023-12-22 02:32:34,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:32" (2/3) ... [2023-12-22 02:32:34,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533edcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:32:34, skipping insertion in model container [2023-12-22 02:32:34,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:32:34" (3/3) ... [2023-12-22 02:32:34,217 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2023-12-22 02:32:34,233 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:32:34,233 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:32:34,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:32:34,273 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;@7cbcc220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:32:34,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:32:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 434 states, 389 states have (on average 1.7275064267352185) internal successors, (672), 394 states have internal predecessors, (672), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-22 02:32:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-22 02:32:34,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:34,285 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] [2023-12-22 02:32:34,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:34,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -995552835, now seen corresponding path program 1 times [2023-12-22 02:32:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:34,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010539655] [2023-12-22 02:32:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:34,297 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 [2023-12-22 02:32:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:34,299 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) [2023-12-22 02:32:34,327 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 [2023-12-22 02:32:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:34,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:34,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:34,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:34,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:34,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010539655] [2023-12-22 02:32:34,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010539655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:34,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:34,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:34,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347683405] [2023-12-22 02:32:34,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:34,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:34,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:34,521 INFO L87 Difference]: Start difference. First operand has 434 states, 389 states have (on average 1.7275064267352185) internal successors, (672), 394 states have internal predecessors, (672), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-22 02:32:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:34,726 INFO L93 Difference]: Finished difference Result 845 states and 1432 transitions. [2023-12-22 02:32:34,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:34,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2023-12-22 02:32:34,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:34,738 INFO L225 Difference]: With dead ends: 845 [2023-12-22 02:32:34,739 INFO L226 Difference]: Without dead ends: 429 [2023-12-22 02:32:34,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:34,747 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 85 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:34,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1193 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-22 02:32:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2023-12-22 02:32:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 386 states have (on average 1.616580310880829) internal successors, (624), 389 states have internal predecessors, (624), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-22 02:32:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 688 transitions. [2023-12-22 02:32:34,800 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 688 transitions. Word has length 37 [2023-12-22 02:32:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:34,800 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 688 transitions. [2023-12-22 02:32:34,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-22 02:32:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 688 transitions. [2023-12-22 02:32:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-22 02:32:34,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:34,802 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] [2023-12-22 02:32:34,809 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 (2)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:35,007 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 [2023-12-22 02:32:35,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:35,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:35,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1248430463, now seen corresponding path program 1 times [2023-12-22 02:32:35,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:35,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423543426] [2023-12-22 02:32:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:35,010 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 [2023-12-22 02:32:35,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:35,023 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) [2023-12-22 02:32:35,024 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 [2023-12-22 02:32:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:35,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:35,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:35,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:35,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:35,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423543426] [2023-12-22 02:32:35,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423543426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:35,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:35,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:35,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486353741] [2023-12-22 02:32:35,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:35,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:35,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:35,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:35,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:35,145 INFO L87 Difference]: Start difference. First operand 429 states and 688 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:35,246 INFO L93 Difference]: Finished difference Result 538 states and 845 transitions. [2023-12-22 02:32:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-22 02:32:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:35,251 INFO L225 Difference]: With dead ends: 538 [2023-12-22 02:32:35,251 INFO L226 Difference]: Without dead ends: 482 [2023-12-22 02:32:35,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:35,252 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 664 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:35,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 714 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:35,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-12-22 02:32:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 478. [2023-12-22 02:32:35,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 429 states have (on average 1.592074592074592) internal successors, (683), 432 states have internal predecessors, (683), 37 states have call successors, (37), 11 states have call predecessors, (37), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2023-12-22 02:32:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 759 transitions. [2023-12-22 02:32:35,277 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 759 transitions. Word has length 37 [2023-12-22 02:32:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:35,278 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 759 transitions. [2023-12-22 02:32:35,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:35,278 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 759 transitions. [2023-12-22 02:32:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 02:32:35,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:35,279 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] [2023-12-22 02:32:35,299 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 (3)] Ended with exit code 0 [2023-12-22 02:32:35,486 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 [2023-12-22 02:32:35,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:35,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash -987178231, now seen corresponding path program 1 times [2023-12-22 02:32:35,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:35,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794846693] [2023-12-22 02:32:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:35,490 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 [2023-12-22 02:32:35,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:35,491 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) [2023-12-22 02:32:35,517 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 [2023-12-22 02:32:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:35,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:35,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:35,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:35,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794846693] [2023-12-22 02:32:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794846693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202447690] [2023-12-22 02:32:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:35,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:35,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:35,607 INFO L87 Difference]: Start difference. First operand 478 states and 759 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:35,724 INFO L93 Difference]: Finished difference Result 678 states and 1051 transitions. [2023-12-22 02:32:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:35,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-22 02:32:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:35,727 INFO L225 Difference]: With dead ends: 678 [2023-12-22 02:32:35,727 INFO L226 Difference]: Without dead ends: 575 [2023-12-22 02:32:35,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:35,728 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 662 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:35,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 699 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:35,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-22 02:32:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 571. [2023-12-22 02:32:35,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 510 states have (on average 1.5568627450980392) internal successors, (794), 513 states have internal predecessors, (794), 45 states have call successors, (45), 15 states have call predecessors, (45), 14 states have return successors, (51), 43 states have call predecessors, (51), 43 states have call successors, (51) [2023-12-22 02:32:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 890 transitions. [2023-12-22 02:32:35,748 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 890 transitions. Word has length 38 [2023-12-22 02:32:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:35,748 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 890 transitions. [2023-12-22 02:32:35,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 890 transitions. [2023-12-22 02:32:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 02:32:35,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:35,750 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] [2023-12-22 02:32:35,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:35,953 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 [2023-12-22 02:32:35,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:35,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2057625110, now seen corresponding path program 1 times [2023-12-22 02:32:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:35,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685899908] [2023-12-22 02:32:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:35,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:35,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:35,957 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) [2023-12-22 02:32:35,960 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 [2023-12-22 02:32:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:36,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:36,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:36,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:36,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685899908] [2023-12-22 02:32:36,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685899908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:36,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:36,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:36,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407097172] [2023-12-22 02:32:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:36,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:36,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:36,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:36,110 INFO L87 Difference]: Start difference. First operand 571 states and 890 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:36,277 INFO L93 Difference]: Finished difference Result 923 states and 1387 transitions. [2023-12-22 02:32:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:36,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-22 02:32:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:36,282 INFO L225 Difference]: With dead ends: 923 [2023-12-22 02:32:36,282 INFO L226 Difference]: Without dead ends: 727 [2023-12-22 02:32:36,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:36,284 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 57 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:36,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1267 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:36,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-22 02:32:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 676. [2023-12-22 02:32:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 603 states have (on average 1.5306799336650083) internal successors, (923), 608 states have internal predecessors, (923), 51 states have call successors, (51), 21 states have call predecessors, (51), 20 states have return successors, (59), 47 states have call predecessors, (59), 49 states have call successors, (59) [2023-12-22 02:32:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 1033 transitions. [2023-12-22 02:32:36,323 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 1033 transitions. Word has length 39 [2023-12-22 02:32:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:36,323 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 1033 transitions. [2023-12-22 02:32:36,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:32:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1033 transitions. [2023-12-22 02:32:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 02:32:36,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:36,326 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:36,337 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 [2023-12-22 02:32:36,529 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 [2023-12-22 02:32:36,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:36,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash -961012926, now seen corresponding path program 1 times [2023-12-22 02:32:36,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:36,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096430779] [2023-12-22 02:32:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:36,531 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 [2023-12-22 02:32:36,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:36,532 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) [2023-12-22 02:32:36,534 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 (6)] Waiting until timeout for monitored process [2023-12-22 02:32:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:36,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:36,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:36,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:36,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096430779] [2023-12-22 02:32:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096430779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:36,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:36,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:36,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762023724] [2023-12-22 02:32:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:36,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:36,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:36,661 INFO L87 Difference]: Start difference. First operand 676 states and 1033 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:32:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:36,777 INFO L93 Difference]: Finished difference Result 924 states and 1383 transitions. [2023-12-22 02:32:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:36,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-22 02:32:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:36,782 INFO L225 Difference]: With dead ends: 924 [2023-12-22 02:32:36,782 INFO L226 Difference]: Without dead ends: 728 [2023-12-22 02:32:36,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:36,783 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 45 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:36,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1307 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-12-22 02:32:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2023-12-22 02:32:36,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.5054095826893354) internal successors, (974), 652 states have internal predecessors, (974), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (67), 52 states have call predecessors, (67), 54 states have call successors, (67) [2023-12-22 02:32:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1097 transitions. [2023-12-22 02:32:36,819 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1097 transitions. Word has length 54 [2023-12-22 02:32:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:36,820 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1097 transitions. [2023-12-22 02:32:36,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:32:36,820 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1097 transitions. [2023-12-22 02:32:36,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:32:36,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:36,822 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:36,834 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 [2023-12-22 02:32:37,025 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 [2023-12-22 02:32:37,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:37,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash -691278202, now seen corresponding path program 1 times [2023-12-22 02:32:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425098588] [2023-12-22 02:32:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:37,028 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 [2023-12-22 02:32:37,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:37,045 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) [2023-12-22 02:32:37,090 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 [2023-12-22 02:32:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:37,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:37,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:32:37,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:37,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:37,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425098588] [2023-12-22 02:32:37,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425098588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:37,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:37,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:37,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768714099] [2023-12-22 02:32:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:37,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:37,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:37,215 INFO L87 Difference]: Start difference. First operand 728 states and 1097 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:37,333 INFO L93 Difference]: Finished difference Result 1137 states and 1654 transitions. [2023-12-22 02:32:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-22 02:32:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:37,336 INFO L225 Difference]: With dead ends: 1137 [2023-12-22 02:32:37,336 INFO L226 Difference]: Without dead ends: 825 [2023-12-22 02:32:37,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:37,337 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 649 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:37,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 703 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-12-22 02:32:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2023-12-22 02:32:37,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 732 states have (on average 1.471311475409836) internal successors, (1077), 737 states have internal predecessors, (1077), 63 states have call successors, (63), 29 states have call predecessors, (63), 28 states have return successors, (77), 59 states have call predecessors, (77), 61 states have call successors, (77) [2023-12-22 02:32:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1217 transitions. [2023-12-22 02:32:37,432 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1217 transitions. Word has length 59 [2023-12-22 02:32:37,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:37,432 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1217 transitions. [2023-12-22 02:32:37,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1217 transitions. [2023-12-22 02:32:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:32:37,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:37,434 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:37,449 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 [2023-12-22 02:32:37,638 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 [2023-12-22 02:32:37,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:37,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash -286134322, now seen corresponding path program 1 times [2023-12-22 02:32:37,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:37,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44761183] [2023-12-22 02:32:37,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:37,639 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 [2023-12-22 02:32:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:37,640 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) [2023-12-22 02:32:37,673 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 [2023-12-22 02:32:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:37,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:37,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:32:37,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:37,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44761183] [2023-12-22 02:32:37,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44761183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:37,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:37,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:37,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335171747] [2023-12-22 02:32:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:37,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:37,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:37,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:37,753 INFO L87 Difference]: Start difference. First operand 825 states and 1217 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:37,888 INFO L93 Difference]: Finished difference Result 1241 states and 1793 transitions. [2023-12-22 02:32:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:32:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:37,892 INFO L225 Difference]: With dead ends: 1241 [2023-12-22 02:32:37,892 INFO L226 Difference]: Without dead ends: 877 [2023-12-22 02:32:37,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:37,893 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 11 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:37,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1897 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2023-12-22 02:32:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 854. [2023-12-22 02:32:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 759 states have (on average 1.4558629776021081) internal successors, (1105), 766 states have internal predecessors, (1105), 63 states have call successors, (63), 29 states have call predecessors, (63), 30 states have return successors, (79), 59 states have call predecessors, (79), 61 states have call successors, (79) [2023-12-22 02:32:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1247 transitions. [2023-12-22 02:32:37,930 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1247 transitions. Word has length 60 [2023-12-22 02:32:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:37,930 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1247 transitions. [2023-12-22 02:32:37,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1247 transitions. [2023-12-22 02:32:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:32:37,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:37,931 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:37,937 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 (8)] Ended with exit code 0 [2023-12-22 02:32:38,134 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 [2023-12-22 02:32:38,135 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:38,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:38,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1130139824, now seen corresponding path program 1 times [2023-12-22 02:32:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:38,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934323165] [2023-12-22 02:32:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:38,137 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 [2023-12-22 02:32:38,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:38,138 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) [2023-12-22 02:32:38,140 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 [2023-12-22 02:32:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:38,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:38,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:32:38,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:38,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:38,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934323165] [2023-12-22 02:32:38,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934323165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:38,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:38,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042841657] [2023-12-22 02:32:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:38,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:38,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:38,289 INFO L87 Difference]: Start difference. First operand 854 states and 1247 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:38,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:38,443 INFO L93 Difference]: Finished difference Result 1271 states and 1816 transitions. [2023-12-22 02:32:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:38,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:32:38,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:38,446 INFO L225 Difference]: With dead ends: 1271 [2023-12-22 02:32:38,447 INFO L226 Difference]: Without dead ends: 878 [2023-12-22 02:32:38,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:38,448 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 2 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:38,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1894 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-22 02:32:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 872. [2023-12-22 02:32:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 775 states have (on average 1.44) internal successors, (1116), 784 states have internal predecessors, (1116), 63 states have call successors, (63), 29 states have call predecessors, (63), 32 states have return successors, (81), 59 states have call predecessors, (81), 61 states have call successors, (81) [2023-12-22 02:32:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1260 transitions. [2023-12-22 02:32:38,480 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1260 transitions. Word has length 60 [2023-12-22 02:32:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:38,481 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1260 transitions. [2023-12-22 02:32:38,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:32:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1260 transitions. [2023-12-22 02:32:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:32:38,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:38,482 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:38,494 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 [2023-12-22 02:32:38,686 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 [2023-12-22 02:32:38,686 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:38,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 667499792, now seen corresponding path program 1 times [2023-12-22 02:32:38,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:38,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278160927] [2023-12-22 02:32:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:38,687 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 [2023-12-22 02:32:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:38,688 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) [2023-12-22 02:32:38,689 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 [2023-12-22 02:32:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:38,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:38,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:38,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:32:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:32:38,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:38,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278160927] [2023-12-22 02:32:38,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278160927] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 02:32:38,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 02:32:38,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-12-22 02:32:38,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573897775] [2023-12-22 02:32:38,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:38,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:38,899 INFO L87 Difference]: Start difference. First operand 872 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:32:39,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:39,112 INFO L93 Difference]: Finished difference Result 921 states and 1321 transitions. [2023-12-22 02:32:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:39,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-22 02:32:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:39,116 INFO L225 Difference]: With dead ends: 921 [2023-12-22 02:32:39,116 INFO L226 Difference]: Without dead ends: 918 [2023-12-22 02:32:39,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:39,116 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 1255 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:39,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 706 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:32:39,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-12-22 02:32:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 871. [2023-12-22 02:32:39,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 775 states have (on average 1.4374193548387098) internal successors, (1114), 783 states have internal predecessors, (1114), 62 states have call successors, (62), 29 states have call predecessors, (62), 32 states have return successors, (81), 59 states have call predecessors, (81), 61 states have call successors, (81) [2023-12-22 02:32:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1257 transitions. [2023-12-22 02:32:39,148 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1257 transitions. Word has length 60 [2023-12-22 02:32:39,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:39,148 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1257 transitions. [2023-12-22 02:32:39,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:32:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1257 transitions. [2023-12-22 02:32:39,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 02:32:39,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:39,150 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:39,167 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 [2023-12-22 02:32:39,364 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 [2023-12-22 02:32:39,364 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:39,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:39,365 INFO L85 PathProgramCache]: Analyzing trace with hash -783822905, now seen corresponding path program 1 times [2023-12-22 02:32:39,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:39,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579897775] [2023-12-22 02:32:39,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:39,365 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 [2023-12-22 02:32:39,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:39,372 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) [2023-12-22 02:32:39,409 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 [2023-12-22 02:32:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:39,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:32:39,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:39,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:32:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:32:39,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579897775] [2023-12-22 02:32:39,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579897775] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:32:39,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:32:39,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:32:39,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237416347] [2023-12-22 02:32:39,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:32:39,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:32:39,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:32:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:32:39,765 INFO L87 Difference]: Start difference. First operand 871 states and 1257 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:32:40,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:40,172 INFO L93 Difference]: Finished difference Result 1590 states and 2195 transitions. [2023-12-22 02:32:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:32:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2023-12-22 02:32:40,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:40,178 INFO L225 Difference]: With dead ends: 1590 [2023-12-22 02:32:40,178 INFO L226 Difference]: Without dead ends: 1587 [2023-12-22 02:32:40,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:32:40,179 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1448 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:40,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 2047 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:32:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2023-12-22 02:32:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1174. [2023-12-22 02:32:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1042 states have (on average 1.401151631477927) internal successors, (1460), 1056 states have internal predecessors, (1460), 81 states have call successors, (81), 42 states have call predecessors, (81), 49 states have return successors, (112), 76 states have call predecessors, (112), 80 states have call successors, (112) [2023-12-22 02:32:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1653 transitions. [2023-12-22 02:32:40,260 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1653 transitions. Word has length 61 [2023-12-22 02:32:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:40,260 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1653 transitions. [2023-12-22 02:32:40,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:32:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1653 transitions. [2023-12-22 02:32:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:32:40,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:40,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:40,280 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 [2023-12-22 02:32:40,465 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 [2023-12-22 02:32:40,466 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:40,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash -855987006, now seen corresponding path program 2 times [2023-12-22 02:32:40,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:40,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654874477] [2023-12-22 02:32:40,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:32:40,467 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 [2023-12-22 02:32:40,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:40,468 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) [2023-12-22 02:32:40,469 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 [2023-12-22 02:32:40,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:32:40,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:32:40,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:40,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:32:40,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:40,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:40,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654874477] [2023-12-22 02:32:40,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654874477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:40,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:40,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:40,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463758640] [2023-12-22 02:32:40,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:40,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:40,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:40,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:40,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:40,640 INFO L87 Difference]: Start difference. First operand 1174 states and 1653 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:32:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:40,769 INFO L93 Difference]: Finished difference Result 1729 states and 2384 transitions. [2023-12-22 02:32:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:40,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-22 02:32:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:40,773 INFO L225 Difference]: With dead ends: 1729 [2023-12-22 02:32:40,773 INFO L226 Difference]: Without dead ends: 1078 [2023-12-22 02:32:40,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:40,774 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 652 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:40,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 723 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-12-22 02:32:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1066. [2023-12-22 02:32:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 947 states have (on average 1.4065469904963042) internal successors, (1332), 961 states have internal predecessors, (1332), 74 states have call successors, (74), 37 states have call predecessors, (74), 43 states have return successors, (101), 68 states have call predecessors, (101), 73 states have call successors, (101) [2023-12-22 02:32:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1507 transitions. [2023-12-22 02:32:40,820 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1507 transitions. Word has length 78 [2023-12-22 02:32:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:40,821 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1507 transitions. [2023-12-22 02:32:40,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:32:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1507 transitions. [2023-12-22 02:32:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 02:32:40,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:40,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:40,846 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 (12)] Ended with exit code 0 [2023-12-22 02:32:41,031 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 [2023-12-22 02:32:41,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:41,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash -147214036, now seen corresponding path program 1 times [2023-12-22 02:32:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681882947] [2023-12-22 02:32:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:41,033 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 [2023-12-22 02:32:41,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:41,034 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) [2023-12-22 02:32:41,036 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 [2023-12-22 02:32:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:41,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:41,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:41,212 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:32:41,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:41,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:41,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681882947] [2023-12-22 02:32:41,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681882947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:41,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:41,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:41,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720633653] [2023-12-22 02:32:41,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:41,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:41,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:41,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:41,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:41,214 INFO L87 Difference]: Start difference. First operand 1066 states and 1507 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:41,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:41,747 INFO L93 Difference]: Finished difference Result 1790 states and 2448 transitions. [2023-12-22 02:32:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:41,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-22 02:32:41,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:41,751 INFO L225 Difference]: With dead ends: 1790 [2023-12-22 02:32:41,751 INFO L226 Difference]: Without dead ends: 1099 [2023-12-22 02:32:41,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:41,754 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 915 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:41,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 696 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:32:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2023-12-22 02:32:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1066. [2023-12-22 02:32:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 947 states have (on average 1.3907074973600846) internal successors, (1317), 961 states have internal predecessors, (1317), 74 states have call successors, (74), 37 states have call predecessors, (74), 43 states have return successors, (100), 68 states have call predecessors, (100), 73 states have call successors, (100) [2023-12-22 02:32:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1491 transitions. [2023-12-22 02:32:41,800 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1491 transitions. Word has length 92 [2023-12-22 02:32:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:41,801 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1491 transitions. [2023-12-22 02:32:41,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1491 transitions. [2023-12-22 02:32:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 02:32:41,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:41,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:41,807 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 [2023-12-22 02:32:42,007 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 [2023-12-22 02:32:42,008 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:42,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1045385967, now seen corresponding path program 1 times [2023-12-22 02:32:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22384751] [2023-12-22 02:32:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:42,009 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 [2023-12-22 02:32:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:42,010 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) [2023-12-22 02:32:42,011 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 [2023-12-22 02:32:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:42,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:42,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:32:42,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:42,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:42,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22384751] [2023-12-22 02:32:42,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22384751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:42,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:42,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352047711] [2023-12-22 02:32:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:42,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:42,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:42,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:42,104 INFO L87 Difference]: Start difference. First operand 1066 states and 1491 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:32:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:42,236 INFO L93 Difference]: Finished difference Result 1349 states and 1842 transitions. [2023-12-22 02:32:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 93 [2023-12-22 02:32:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:42,238 INFO L225 Difference]: With dead ends: 1349 [2023-12-22 02:32:42,238 INFO L226 Difference]: Without dead ends: 370 [2023-12-22 02:32:42,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:42,241 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 50 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:42,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1280 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-22 02:32:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-12-22 02:32:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 337 states have internal predecessors, (550), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:32:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 604 transitions. [2023-12-22 02:32:42,255 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 604 transitions. Word has length 93 [2023-12-22 02:32:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:42,255 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 604 transitions. [2023-12-22 02:32:42,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:32:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 604 transitions. [2023-12-22 02:32:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:42,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:42,256 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] [2023-12-22 02:32:42,260 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 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:42,460 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 [2023-12-22 02:32:42,461 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:42,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1809885346, now seen corresponding path program 1 times [2023-12-22 02:32:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960671623] [2023-12-22 02:32:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:42,463 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 [2023-12-22 02:32:42,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:42,467 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) [2023-12-22 02:32:42,470 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 [2023-12-22 02:32:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:42,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:42,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:42,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:42,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:42,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960671623] [2023-12-22 02:32:42,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960671623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:42,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:42,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:42,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505148865] [2023-12-22 02:32:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:42,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:42,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:42,656 INFO L87 Difference]: Start difference. First operand 370 states and 604 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:42,724 INFO L93 Difference]: Finished difference Result 733 states and 1197 transitions. [2023-12-22 02:32:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:42,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:42,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:42,726 INFO L225 Difference]: With dead ends: 733 [2023-12-22 02:32:42,726 INFO L226 Difference]: Without dead ends: 370 [2023-12-22 02:32:42,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:42,727 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 595 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:42,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 555 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:42,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-22 02:32:42,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-12-22 02:32:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.6339285714285714) internal successors, (549), 337 states have internal predecessors, (549), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:32:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 603 transitions. [2023-12-22 02:32:42,740 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 603 transitions. Word has length 171 [2023-12-22 02:32:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:42,741 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 603 transitions. [2023-12-22 02:32:42,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 603 transitions. [2023-12-22 02:32:42,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:42,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:42,742 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] [2023-12-22 02:32:42,762 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 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:42,948 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 [2023-12-22 02:32:42,948 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:42,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:42,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1986525148, now seen corresponding path program 1 times [2023-12-22 02:32:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:42,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785508966] [2023-12-22 02:32:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:42,949 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 [2023-12-22 02:32:42,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:42,951 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) [2023-12-22 02:32:42,952 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 [2023-12-22 02:32:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:43,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:43,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:43,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:43,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:43,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785508966] [2023-12-22 02:32:43,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785508966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:43,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:43,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:43,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496692870] [2023-12-22 02:32:43,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:43,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:43,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:43,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:43,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:43,164 INFO L87 Difference]: Start difference. First operand 370 states and 603 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:43,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:43,236 INFO L93 Difference]: Finished difference Result 725 states and 1180 transitions. [2023-12-22 02:32:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:43,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:43,238 INFO L225 Difference]: With dead ends: 725 [2023-12-22 02:32:43,238 INFO L226 Difference]: Without dead ends: 370 [2023-12-22 02:32:43,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:43,239 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 586 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:43,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 554 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:32:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-22 02:32:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-12-22 02:32:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 336 states have (on average 1.630952380952381) internal successors, (548), 337 states have internal predecessors, (548), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:32:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 602 transitions. [2023-12-22 02:32:43,254 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 602 transitions. Word has length 171 [2023-12-22 02:32:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:43,254 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 602 transitions. [2023-12-22 02:32:43,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 602 transitions. [2023-12-22 02:32:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:43,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:43,255 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] [2023-12-22 02:32:43,278 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 (16)] Ended with exit code 0 [2023-12-22 02:32:43,460 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 [2023-12-22 02:32:43,461 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:43,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash -538970534, now seen corresponding path program 1 times [2023-12-22 02:32:43,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:43,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005113952] [2023-12-22 02:32:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:43,462 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 [2023-12-22 02:32:43,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:43,463 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) [2023-12-22 02:32:43,497 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 [2023-12-22 02:32:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:43,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:43,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:43,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:43,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:43,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005113952] [2023-12-22 02:32:43,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005113952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:43,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:43,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:43,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37811213] [2023-12-22 02:32:43,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:43,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:43,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:43,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:43,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:43,688 INFO L87 Difference]: Start difference. First operand 370 states and 602 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:44,472 INFO L93 Difference]: Finished difference Result 1123 states and 1845 transitions. [2023-12-22 02:32:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:32:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:44,476 INFO L225 Difference]: With dead ends: 1123 [2023-12-22 02:32:44,476 INFO L226 Difference]: Without dead ends: 773 [2023-12-22 02:32:44,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:44,477 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1173 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:44,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 1721 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:32:44,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-12-22 02:32:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 742. [2023-12-22 02:32:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.642120765832106) internal successors, (1115), 681 states have internal predecessors, (1115), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1214 transitions. [2023-12-22 02:32:44,515 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1214 transitions. Word has length 171 [2023-12-22 02:32:44,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:44,515 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1214 transitions. [2023-12-22 02:32:44,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:44,515 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1214 transitions. [2023-12-22 02:32:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:44,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:44,517 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] [2023-12-22 02:32:44,544 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:44,723 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 [2023-12-22 02:32:44,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:44,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash 740378206, now seen corresponding path program 1 times [2023-12-22 02:32:44,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:44,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738472572] [2023-12-22 02:32:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:44,724 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 [2023-12-22 02:32:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:44,730 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) [2023-12-22 02:32:44,733 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 [2023-12-22 02:32:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:44,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:44,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:44,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:44,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738472572] [2023-12-22 02:32:44,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738472572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:44,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:44,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:44,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650912428] [2023-12-22 02:32:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:44,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:44,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:44,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:44,953 INFO L87 Difference]: Start difference. First operand 742 states and 1214 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:45,393 INFO L93 Difference]: Finished difference Result 1464 states and 2401 transitions. [2023-12-22 02:32:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:45,396 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:45,396 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:45,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:45,398 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 821 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:45,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 969 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:45,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.6318114874815906) internal successors, (1108), 681 states have internal predecessors, (1108), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1207 transitions. [2023-12-22 02:32:45,423 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1207 transitions. Word has length 171 [2023-12-22 02:32:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1207 transitions. [2023-12-22 02:32:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1207 transitions. [2023-12-22 02:32:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:45,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:45,424 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] [2023-12-22 02:32:45,429 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 [2023-12-22 02:32:45,629 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 [2023-12-22 02:32:45,630 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:45,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:45,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1573657126, now seen corresponding path program 1 times [2023-12-22 02:32:45,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:45,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886131681] [2023-12-22 02:32:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:45,631 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 [2023-12-22 02:32:45,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:45,632 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) [2023-12-22 02:32:45,668 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 [2023-12-22 02:32:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:45,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:45,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:45,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:45,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:45,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886131681] [2023-12-22 02:32:45,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886131681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:45,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:45,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:45,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509006834] [2023-12-22 02:32:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:45,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:45,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:45,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:45,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:45,832 INFO L87 Difference]: Start difference. First operand 742 states and 1207 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:46,281 INFO L93 Difference]: Finished difference Result 1464 states and 2387 transitions. [2023-12-22 02:32:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:46,284 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:46,284 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:46,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:46,287 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 814 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:46,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 962 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:46,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:46,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:46,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.6215022091310751) internal successors, (1101), 681 states have internal predecessors, (1101), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1200 transitions. [2023-12-22 02:32:46,317 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1200 transitions. Word has length 171 [2023-12-22 02:32:46,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:46,318 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1200 transitions. [2023-12-22 02:32:46,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:46,318 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1200 transitions. [2023-12-22 02:32:46,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:46,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:46,319 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] [2023-12-22 02:32:46,326 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:46,524 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 [2023-12-22 02:32:46,524 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:46,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1646277718, now seen corresponding path program 1 times [2023-12-22 02:32:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:46,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917883027] [2023-12-22 02:32:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:46,525 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 [2023-12-22 02:32:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:46,526 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-22 02:32:46,534 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 (20)] Waiting until timeout for monitored process [2023-12-22 02:32:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:46,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:46,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:46,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:46,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:46,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917883027] [2023-12-22 02:32:46,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917883027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:46,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:46,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596148978] [2023-12-22 02:32:46,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:46,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:46,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:46,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:46,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:46,743 INFO L87 Difference]: Start difference. First operand 742 states and 1200 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:47,173 INFO L93 Difference]: Finished difference Result 1464 states and 2373 transitions. [2023-12-22 02:32:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:47,176 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:47,176 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:47,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:47,178 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 808 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:47,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 955 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:47,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.6111929307805597) internal successors, (1094), 681 states have internal predecessors, (1094), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1193 transitions. [2023-12-22 02:32:47,207 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1193 transitions. Word has length 171 [2023-12-22 02:32:47,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:47,207 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1193 transitions. [2023-12-22 02:32:47,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1193 transitions. [2023-12-22 02:32:47,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:47,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:47,208 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] [2023-12-22 02:32:47,234 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 (20)] Ended with exit code 0 [2023-12-22 02:32:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-22 02:32:47,414 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:47,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -328063398, now seen corresponding path program 1 times [2023-12-22 02:32:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700044483] [2023-12-22 02:32:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:47,415 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 [2023-12-22 02:32:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:47,421 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-22 02:32:47,429 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 (21)] Waiting until timeout for monitored process [2023-12-22 02:32:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:47,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:47,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:47,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:47,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:47,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700044483] [2023-12-22 02:32:47,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700044483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:47,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:47,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:47,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969563351] [2023-12-22 02:32:47,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:47,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:47,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:47,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:47,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:47,682 INFO L87 Difference]: Start difference. First operand 742 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:48,133 INFO L93 Difference]: Finished difference Result 1464 states and 2359 transitions. [2023-12-22 02:32:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:48,136 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:48,136 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:48,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:48,139 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 802 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:48,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 948 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:48,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.6008836524300443) internal successors, (1087), 681 states have internal predecessors, (1087), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1186 transitions. [2023-12-22 02:32:48,186 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1186 transitions. Word has length 171 [2023-12-22 02:32:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:48,186 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1186 transitions. [2023-12-22 02:32:48,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1186 transitions. [2023-12-22 02:32:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:48,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:48,187 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] [2023-12-22 02:32:48,198 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:48,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-22 02:32:48,399 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:48,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1361583146, now seen corresponding path program 1 times [2023-12-22 02:32:48,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:48,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143895113] [2023-12-22 02:32:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:48,400 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 [2023-12-22 02:32:48,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:48,401 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-22 02:32:48,435 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 (22)] Waiting until timeout for monitored process [2023-12-22 02:32:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:48,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:48,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:48,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:48,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143895113] [2023-12-22 02:32:48,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143895113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:48,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:48,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:48,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577542716] [2023-12-22 02:32:48,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:48,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:48,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:48,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:48,605 INFO L87 Difference]: Start difference. First operand 742 states and 1186 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:49,039 INFO L93 Difference]: Finished difference Result 1464 states and 2345 transitions. [2023-12-22 02:32:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:49,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:49,043 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:49,043 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:49,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:49,047 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 796 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:49,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 941 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5905743740795286) internal successors, (1080), 681 states have internal predecessors, (1080), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1179 transitions. [2023-12-22 02:32:49,084 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1179 transitions. Word has length 171 [2023-12-22 02:32:49,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:49,084 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1179 transitions. [2023-12-22 02:32:49,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1179 transitions. [2023-12-22 02:32:49,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:49,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:49,086 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] [2023-12-22 02:32:49,106 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 (22)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:49,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-22 02:32:49,291 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:49,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1514571482, now seen corresponding path program 1 times [2023-12-22 02:32:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:49,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441768707] [2023-12-22 02:32:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:49,292 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 [2023-12-22 02:32:49,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:49,294 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-22 02:32:49,295 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 (23)] Waiting until timeout for monitored process [2023-12-22 02:32:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:49,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:49,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:49,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:49,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:49,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441768707] [2023-12-22 02:32:49,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441768707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:49,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:49,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:49,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589091991] [2023-12-22 02:32:49,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:49,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:49,511 INFO L87 Difference]: Start difference. First operand 742 states and 1179 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:49,876 INFO L93 Difference]: Finished difference Result 1464 states and 2331 transitions. [2023-12-22 02:32:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:49,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:49,892 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:49,892 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:49,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:49,896 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 790 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:49,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 934 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:32:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:49,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5802650957290132) internal successors, (1073), 681 states have internal predecessors, (1073), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1172 transitions. [2023-12-22 02:32:49,965 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1172 transitions. Word has length 171 [2023-12-22 02:32:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:49,965 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1172 transitions. [2023-12-22 02:32:49,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1172 transitions. [2023-12-22 02:32:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:49,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:49,966 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] [2023-12-22 02:32:49,986 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 (23)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:50,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-22 02:32:50,172 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:50,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash -55217322, now seen corresponding path program 1 times [2023-12-22 02:32:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:50,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431759150] [2023-12-22 02:32:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:50,173 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 [2023-12-22 02:32:50,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:50,174 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-22 02:32:50,177 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 (24)] Waiting until timeout for monitored process [2023-12-22 02:32:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:50,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:50,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:50,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:50,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:50,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431759150] [2023-12-22 02:32:50,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431759150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:50,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:50,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:50,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85887956] [2023-12-22 02:32:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:50,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:50,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:50,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:50,435 INFO L87 Difference]: Start difference. First operand 742 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:50,895 INFO L93 Difference]: Finished difference Result 1464 states and 2317 transitions. [2023-12-22 02:32:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:50,899 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:50,899 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:50,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:50,901 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 784 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:50,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 927 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5699558173784978) internal successors, (1066), 681 states have internal predecessors, (1066), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1165 transitions. [2023-12-22 02:32:50,950 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1165 transitions. Word has length 171 [2023-12-22 02:32:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:50,950 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1165 transitions. [2023-12-22 02:32:50,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1165 transitions. [2023-12-22 02:32:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:50,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:50,951 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] [2023-12-22 02:32:50,971 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:51,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-22 02:32:51,158 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:51,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash 448333658, now seen corresponding path program 1 times [2023-12-22 02:32:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:51,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998754493] [2023-12-22 02:32:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:51,159 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 [2023-12-22 02:32:51,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:51,161 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-22 02:32:51,166 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 (25)] Waiting until timeout for monitored process [2023-12-22 02:32:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:51,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:51,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:51,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:51,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:51,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998754493] [2023-12-22 02:32:51,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998754493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:51,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:51,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:51,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469896945] [2023-12-22 02:32:51,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:51,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:51,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:51,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:51,426 INFO L87 Difference]: Start difference. First operand 742 states and 1165 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:51,982 INFO L93 Difference]: Finished difference Result 1464 states and 2303 transitions. [2023-12-22 02:32:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:51,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:51,990 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:51,990 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:52,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:52,019 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 778 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:52,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 920 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:32:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:52,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5596465390279823) internal successors, (1059), 681 states have internal predecessors, (1059), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1158 transitions. [2023-12-22 02:32:52,113 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1158 transitions. Word has length 171 [2023-12-22 02:32:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:52,113 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1158 transitions. [2023-12-22 02:32:52,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1158 transitions. [2023-12-22 02:32:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:52,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:52,118 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] [2023-12-22 02:32:52,126 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 (25)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:52,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-22 02:32:52,325 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:52,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 464577238, now seen corresponding path program 1 times [2023-12-22 02:32:52,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:52,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627761580] [2023-12-22 02:32:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:52,327 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 [2023-12-22 02:32:52,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:52,328 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-22 02:32:52,331 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 (26)] Waiting until timeout for monitored process [2023-12-22 02:32:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:52,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:52,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:52,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:52,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:52,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627761580] [2023-12-22 02:32:52,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627761580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:52,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:52,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:52,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651414821] [2023-12-22 02:32:52,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:52,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:52,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:52,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:52,580 INFO L87 Difference]: Start difference. First operand 742 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:53,021 INFO L93 Difference]: Finished difference Result 1464 states and 2289 transitions. [2023-12-22 02:32:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:53,024 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:53,024 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:53,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:53,026 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 771 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:53,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 913 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:53,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:53,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.549337260677467) internal successors, (1052), 681 states have internal predecessors, (1052), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1151 transitions. [2023-12-22 02:32:53,075 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1151 transitions. Word has length 171 [2023-12-22 02:32:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:53,075 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1151 transitions. [2023-12-22 02:32:53,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1151 transitions. [2023-12-22 02:32:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:53,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:53,076 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] [2023-12-22 02:32:53,083 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 (26)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:53,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-22 02:32:53,282 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:53,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:53,283 INFO L85 PathProgramCache]: Analyzing trace with hash 379678034, now seen corresponding path program 1 times [2023-12-22 02:32:53,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:53,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421182042] [2023-12-22 02:32:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:53,284 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 [2023-12-22 02:32:53,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:53,285 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-22 02:32:53,286 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 (27)] Waiting until timeout for monitored process [2023-12-22 02:32:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:53,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:53,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:53,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:53,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421182042] [2023-12-22 02:32:53,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421182042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:53,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:53,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:53,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045214672] [2023-12-22 02:32:53,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:53,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:53,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:53,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:53,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:53,529 INFO L87 Difference]: Start difference. First operand 742 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:53,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:53,952 INFO L93 Difference]: Finished difference Result 1464 states and 2275 transitions. [2023-12-22 02:32:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:53,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:53,955 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:53,955 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:53,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:53,957 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 765 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:53,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 906 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5390279823269515) internal successors, (1045), 681 states have internal predecessors, (1045), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1144 transitions. [2023-12-22 02:32:54,002 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1144 transitions. Word has length 171 [2023-12-22 02:32:54,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:54,003 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1144 transitions. [2023-12-22 02:32:54,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1144 transitions. [2023-12-22 02:32:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:54,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:54,005 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] [2023-12-22 02:32:54,026 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:54,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-22 02:32:54,210 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:54,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:54,211 INFO L85 PathProgramCache]: Analyzing trace with hash 376939350, now seen corresponding path program 1 times [2023-12-22 02:32:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:54,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885174877] [2023-12-22 02:32:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:54,211 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 [2023-12-22 02:32:54,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:54,212 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-22 02:32:54,214 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 (28)] Waiting until timeout for monitored process [2023-12-22 02:32:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:54,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:54,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:54,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:54,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885174877] [2023-12-22 02:32:54,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885174877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:54,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:54,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344755953] [2023-12-22 02:32:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:54,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:54,422 INFO L87 Difference]: Start difference. First operand 742 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:54,848 INFO L93 Difference]: Finished difference Result 1464 states and 2261 transitions. [2023-12-22 02:32:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:32:54,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:54,850 INFO L225 Difference]: With dead ends: 1464 [2023-12-22 02:32:54,850 INFO L226 Difference]: Without dead ends: 742 [2023-12-22 02:32:54,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:54,852 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 759 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:54,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 899 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:54,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-22 02:32:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-22 02:32:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 679 states have (on average 1.5287187039764358) internal successors, (1038), 681 states have internal predecessors, (1038), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:32:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1137 transitions. [2023-12-22 02:32:54,938 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1137 transitions. Word has length 171 [2023-12-22 02:32:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:54,938 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1137 transitions. [2023-12-22 02:32:54,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1137 transitions. [2023-12-22 02:32:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:54,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:54,940 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] [2023-12-22 02:32:54,957 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:55,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-22 02:32:55,146 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:55,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1069587666, now seen corresponding path program 1 times [2023-12-22 02:32:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123237896] [2023-12-22 02:32:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:55,147 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 [2023-12-22 02:32:55,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:55,148 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-22 02:32:55,150 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 (29)] Waiting until timeout for monitored process [2023-12-22 02:32:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:55,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:55,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:55,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:55,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:55,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123237896] [2023-12-22 02:32:55,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123237896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:55,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:55,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199655728] [2023-12-22 02:32:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:55,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:55,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:55,340 INFO L87 Difference]: Start difference. First operand 742 states and 1137 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:55,760 INFO L93 Difference]: Finished difference Result 1642 states and 2539 transitions. [2023-12-22 02:32:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:55,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:55,763 INFO L225 Difference]: With dead ends: 1642 [2023-12-22 02:32:55,763 INFO L226 Difference]: Without dead ends: 920 [2023-12-22 02:32:55,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:55,764 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 876 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:55,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 893 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2023-12-22 02:32:55,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2023-12-22 02:32:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 851 states have (on average 1.509988249118684) internal successors, (1285), 853 states have internal predecessors, (1285), 51 states have call successors, (51), 16 states have call predecessors, (51), 17 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-22 02:32:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1388 transitions. [2023-12-22 02:32:55,812 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1388 transitions. Word has length 171 [2023-12-22 02:32:55,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:55,812 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1388 transitions. [2023-12-22 02:32:55,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1388 transitions. [2023-12-22 02:32:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:55,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:55,813 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] [2023-12-22 02:32:55,840 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:56,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-22 02:32:56,019 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:56,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:56,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1124826154, now seen corresponding path program 1 times [2023-12-22 02:32:56,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:56,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065451572] [2023-12-22 02:32:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:56,021 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 [2023-12-22 02:32:56,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:56,022 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-22 02:32:56,026 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 (30)] Waiting until timeout for monitored process [2023-12-22 02:32:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:56,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:56,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:56,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:56,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:56,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065451572] [2023-12-22 02:32:56,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065451572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:56,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:56,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:56,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489634991] [2023-12-22 02:32:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:56,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:56,239 INFO L87 Difference]: Start difference. First operand 920 states and 1388 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:56,870 INFO L93 Difference]: Finished difference Result 1998 states and 3041 transitions. [2023-12-22 02:32:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:56,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:56,874 INFO L225 Difference]: With dead ends: 1998 [2023-12-22 02:32:56,874 INFO L226 Difference]: Without dead ends: 1098 [2023-12-22 02:32:56,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:56,877 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 869 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:56,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 886 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:32:56,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2023-12-22 02:32:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2023-12-22 02:32:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1023 states have (on average 1.4936461388074291) internal successors, (1528), 1025 states have internal predecessors, (1528), 53 states have call successors, (53), 20 states have call predecessors, (53), 21 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-22 02:32:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1635 transitions. [2023-12-22 02:32:56,928 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1635 transitions. Word has length 171 [2023-12-22 02:32:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:56,928 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1635 transitions. [2023-12-22 02:32:56,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1635 transitions. [2023-12-22 02:32:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:56,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:56,930 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] [2023-12-22 02:32:56,946 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 (30)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:57,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-22 02:32:57,136 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:57,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1717008655, now seen corresponding path program 1 times [2023-12-22 02:32:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408748881] [2023-12-22 02:32:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:57,137 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 [2023-12-22 02:32:57,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:57,138 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-22 02:32:57,140 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 (31)] Waiting until timeout for monitored process [2023-12-22 02:32:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:57,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:57,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:57,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:57,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:57,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408748881] [2023-12-22 02:32:57,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408748881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:57,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:57,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:57,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46974787] [2023-12-22 02:32:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:57,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:57,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:57,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:57,327 INFO L87 Difference]: Start difference. First operand 1098 states and 1635 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:57,782 INFO L93 Difference]: Finished difference Result 2354 states and 3535 transitions. [2023-12-22 02:32:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:57,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:57,786 INFO L225 Difference]: With dead ends: 2354 [2023-12-22 02:32:57,786 INFO L226 Difference]: Without dead ends: 1276 [2023-12-22 02:32:57,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:57,789 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 863 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:57,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 879 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2023-12-22 02:32:57,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2023-12-22 02:32:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1195 states have (on average 1.4786610878661088) internal successors, (1767), 1197 states have internal predecessors, (1767), 55 states have call successors, (55), 24 states have call predecessors, (55), 25 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-22 02:32:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1878 transitions. [2023-12-22 02:32:57,868 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1878 transitions. Word has length 171 [2023-12-22 02:32:57,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:57,869 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1878 transitions. [2023-12-22 02:32:57,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1878 transitions. [2023-12-22 02:32:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:57,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:57,870 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] [2023-12-22 02:32:57,877 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 (31)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:58,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-22 02:32:58,076 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:58,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash 32661237, now seen corresponding path program 1 times [2023-12-22 02:32:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732725799] [2023-12-22 02:32:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:58,077 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 [2023-12-22 02:32:58,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:58,117 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-22 02:32:58,118 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 (32)] Waiting until timeout for monitored process [2023-12-22 02:32:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:58,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:58,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:58,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:58,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:58,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732725799] [2023-12-22 02:32:58,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732725799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:58,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:58,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796582361] [2023-12-22 02:32:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:58,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:58,329 INFO L87 Difference]: Start difference. First operand 1276 states and 1878 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:58,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:58,856 INFO L93 Difference]: Finished difference Result 2710 states and 4021 transitions. [2023-12-22 02:32:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:58,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:58,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:58,861 INFO L225 Difference]: With dead ends: 2710 [2023-12-22 02:32:58,861 INFO L226 Difference]: Without dead ends: 1454 [2023-12-22 02:32:58,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:58,864 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 856 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:58,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 872 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:32:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2023-12-22 02:32:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2023-12-22 02:32:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1367 states have (on average 1.4645208485735186) internal successors, (2002), 1369 states have internal predecessors, (2002), 57 states have call successors, (57), 28 states have call predecessors, (57), 29 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-22 02:32:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2117 transitions. [2023-12-22 02:32:58,924 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2117 transitions. Word has length 171 [2023-12-22 02:32:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:58,924 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 2117 transitions. [2023-12-22 02:32:58,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2117 transitions. [2023-12-22 02:32:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:32:58,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:58,925 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] [2023-12-22 02:32:58,934 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:59,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-22 02:32:59,130 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:59,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2052965424, now seen corresponding path program 1 times [2023-12-22 02:32:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046273848] [2023-12-22 02:32:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:59,131 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 [2023-12-22 02:32:59,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:59,132 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-22 02:32:59,134 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 (33)] Waiting until timeout for monitored process [2023-12-22 02:32:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:59,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:32:59,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:32:59,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:59,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:59,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046273848] [2023-12-22 02:32:59,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046273848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:59,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93444154] [2023-12-22 02:32:59,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:59,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:32:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:59,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:32:59,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:59,351 INFO L87 Difference]: Start difference. First operand 1454 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:32:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:59,936 INFO L93 Difference]: Finished difference Result 3066 states and 4499 transitions. [2023-12-22 02:32:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:59,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:32:59,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:59,948 INFO L225 Difference]: With dead ends: 3066 [2023-12-22 02:32:59,948 INFO L226 Difference]: Without dead ends: 1632 [2023-12-22 02:32:59,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:32:59,953 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 848 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:59,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 865 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:32:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2023-12-22 02:33:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2023-12-22 02:33:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1539 states have (on average 1.450942170240416) internal successors, (2233), 1541 states have internal predecessors, (2233), 59 states have call successors, (59), 32 states have call predecessors, (59), 33 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-22 02:33:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2352 transitions. [2023-12-22 02:33:00,064 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2352 transitions. Word has length 171 [2023-12-22 02:33:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:00,064 INFO L495 AbstractCegarLoop]: Abstraction has 1632 states and 2352 transitions. [2023-12-22 02:33:00,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2352 transitions. [2023-12-22 02:33:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:00,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:00,065 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] [2023-12-22 02:33:00,071 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 (33)] Ended with exit code 0 [2023-12-22 02:33:00,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-22 02:33:00,272 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:00,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1352671851, now seen corresponding path program 1 times [2023-12-22 02:33:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895477840] [2023-12-22 02:33:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:00,273 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 [2023-12-22 02:33:00,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:00,274 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-22 02:33:00,275 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 (34)] Waiting until timeout for monitored process [2023-12-22 02:33:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:00,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:00,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:00,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:00,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:00,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895477840] [2023-12-22 02:33:00,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895477840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:00,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:00,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:00,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101447718] [2023-12-22 02:33:00,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:00,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:00,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:00,494 INFO L87 Difference]: Start difference. First operand 1632 states and 2352 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:01,103 INFO L93 Difference]: Finished difference Result 3422 states and 4969 transitions. [2023-12-22 02:33:01,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:01,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:01,108 INFO L225 Difference]: With dead ends: 3422 [2023-12-22 02:33:01,109 INFO L226 Difference]: Without dead ends: 1810 [2023-12-22 02:33:01,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:01,112 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 841 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:01,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 858 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2023-12-22 02:33:01,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2023-12-22 02:33:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1711 states have (on average 1.4377556984219755) internal successors, (2460), 1713 states have internal predecessors, (2460), 61 states have call successors, (61), 36 states have call predecessors, (61), 37 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-22 02:33:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2583 transitions. [2023-12-22 02:33:01,200 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2583 transitions. Word has length 171 [2023-12-22 02:33:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:01,201 INFO L495 AbstractCegarLoop]: Abstraction has 1810 states and 2583 transitions. [2023-12-22 02:33:01,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2583 transitions. [2023-12-22 02:33:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:01,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:01,202 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] [2023-12-22 02:33:01,210 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 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:01,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-22 02:33:01,408 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:01,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash -940071696, now seen corresponding path program 1 times [2023-12-22 02:33:01,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:01,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012021554] [2023-12-22 02:33:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:01,409 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 [2023-12-22 02:33:01,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:01,410 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-22 02:33:01,412 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 (35)] Waiting until timeout for monitored process [2023-12-22 02:33:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:01,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:01,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:01,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:01,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012021554] [2023-12-22 02:33:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012021554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108009841] [2023-12-22 02:33:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:01,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:01,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:01,625 INFO L87 Difference]: Start difference. First operand 1810 states and 2583 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:02,179 INFO L93 Difference]: Finished difference Result 3778 states and 5431 transitions. [2023-12-22 02:33:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:02,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:02,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:02,183 INFO L225 Difference]: With dead ends: 3778 [2023-12-22 02:33:02,183 INFO L226 Difference]: Without dead ends: 1988 [2023-12-22 02:33:02,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:02,186 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 834 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:02,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 851 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2023-12-22 02:33:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1988. [2023-12-22 02:33:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1883 states have (on average 1.4248539564524694) internal successors, (2683), 1885 states have internal predecessors, (2683), 63 states have call successors, (63), 40 states have call predecessors, (63), 41 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-22 02:33:02,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2810 transitions. [2023-12-22 02:33:02,297 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2810 transitions. Word has length 171 [2023-12-22 02:33:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:02,297 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 2810 transitions. [2023-12-22 02:33:02,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2810 transitions. [2023-12-22 02:33:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:02,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:02,298 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] [2023-12-22 02:33:02,306 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 (35)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:02,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-22 02:33:02,504 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:02,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1658856852, now seen corresponding path program 1 times [2023-12-22 02:33:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:02,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121261824] [2023-12-22 02:33:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:02,505 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 [2023-12-22 02:33:02,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:02,506 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-22 02:33:02,542 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 (36)] Waiting until timeout for monitored process [2023-12-22 02:33:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:02,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:02,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:02,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:02,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:02,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121261824] [2023-12-22 02:33:02,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121261824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:02,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:02,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:02,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356343779] [2023-12-22 02:33:02,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:02,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:02,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:02,711 INFO L87 Difference]: Start difference. First operand 1988 states and 2810 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:03,293 INFO L93 Difference]: Finished difference Result 4134 states and 5885 transitions. [2023-12-22 02:33:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:03,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:03,311 INFO L225 Difference]: With dead ends: 4134 [2023-12-22 02:33:03,311 INFO L226 Difference]: Without dead ends: 2166 [2023-12-22 02:33:03,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:03,314 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 827 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:03,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 844 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:33:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2023-12-22 02:33:03,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2166. [2023-12-22 02:33:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2055 states have (on average 1.4121654501216545) internal successors, (2902), 2057 states have internal predecessors, (2902), 65 states have call successors, (65), 44 states have call predecessors, (65), 45 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-22 02:33:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 3033 transitions. [2023-12-22 02:33:03,434 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 3033 transitions. Word has length 171 [2023-12-22 02:33:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:03,434 INFO L495 AbstractCegarLoop]: Abstraction has 2166 states and 3033 transitions. [2023-12-22 02:33:03,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 3033 transitions. [2023-12-22 02:33:03,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:03,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:03,435 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] [2023-12-22 02:33:03,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:03,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-22 02:33:03,641 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:03,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1446147279, now seen corresponding path program 1 times [2023-12-22 02:33:03,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:03,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81862935] [2023-12-22 02:33:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:03,642 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 [2023-12-22 02:33:03,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:03,643 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-22 02:33:03,645 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 (37)] Waiting until timeout for monitored process [2023-12-22 02:33:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:03,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:03,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:03,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:03,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81862935] [2023-12-22 02:33:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81862935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:03,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201773362] [2023-12-22 02:33:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:03,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:03,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:03,858 INFO L87 Difference]: Start difference. First operand 2166 states and 3033 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:04,467 INFO L93 Difference]: Finished difference Result 4490 states and 6331 transitions. [2023-12-22 02:33:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:04,480 INFO L225 Difference]: With dead ends: 4490 [2023-12-22 02:33:04,480 INFO L226 Difference]: Without dead ends: 2344 [2023-12-22 02:33:04,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:04,483 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 820 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:04,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 837 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2023-12-22 02:33:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2344. [2023-12-22 02:33:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2227 states have (on average 1.3996407723394702) internal successors, (3117), 2229 states have internal predecessors, (3117), 67 states have call successors, (67), 48 states have call predecessors, (67), 49 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-22 02:33:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3252 transitions. [2023-12-22 02:33:04,644 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3252 transitions. Word has length 171 [2023-12-22 02:33:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:04,644 INFO L495 AbstractCegarLoop]: Abstraction has 2344 states and 3252 transitions. [2023-12-22 02:33:04,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3252 transitions. [2023-12-22 02:33:04,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:04,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:04,645 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] [2023-12-22 02:33:04,654 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:04,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-22 02:33:04,856 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:04,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1656950867, now seen corresponding path program 1 times [2023-12-22 02:33:04,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:04,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13716755] [2023-12-22 02:33:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:04,857 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 [2023-12-22 02:33:04,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:04,858 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-22 02:33:04,884 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 (38)] Waiting until timeout for monitored process [2023-12-22 02:33:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:05,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:05,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:05,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:05,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13716755] [2023-12-22 02:33:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13716755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:05,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:05,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:05,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204471799] [2023-12-22 02:33:05,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:05,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:05,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:05,090 INFO L87 Difference]: Start difference. First operand 2344 states and 3252 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:05,693 INFO L93 Difference]: Finished difference Result 4846 states and 6769 transitions. [2023-12-22 02:33:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:05,699 INFO L225 Difference]: With dead ends: 4846 [2023-12-22 02:33:05,699 INFO L226 Difference]: Without dead ends: 2522 [2023-12-22 02:33:05,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:05,710 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 813 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:05,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 830 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:05,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2023-12-22 02:33:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2522. [2023-12-22 02:33:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2399 states have (on average 1.3872446852855356) internal successors, (3328), 2401 states have internal predecessors, (3328), 69 states have call successors, (69), 52 states have call predecessors, (69), 53 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:33:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3467 transitions. [2023-12-22 02:33:05,849 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3467 transitions. Word has length 171 [2023-12-22 02:33:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:05,849 INFO L495 AbstractCegarLoop]: Abstraction has 2522 states and 3467 transitions. [2023-12-22 02:33:05,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:05,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3467 transitions. [2023-12-22 02:33:05,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:05,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:05,850 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] [2023-12-22 02:33:05,865 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:06,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-22 02:33:06,056 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:06,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash 196648626, now seen corresponding path program 1 times [2023-12-22 02:33:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828353171] [2023-12-22 02:33:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:06,063 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 [2023-12-22 02:33:06,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:06,064 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-22 02:33:06,101 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 (39)] Waiting until timeout for monitored process [2023-12-22 02:33:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:06,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:06,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:06,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:06,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:06,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828353171] [2023-12-22 02:33:06,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828353171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:06,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:06,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098878132] [2023-12-22 02:33:06,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:06,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:06,303 INFO L87 Difference]: Start difference. First operand 2522 states and 3467 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:06,972 INFO L93 Difference]: Finished difference Result 5202 states and 7199 transitions. [2023-12-22 02:33:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:06,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:06,977 INFO L225 Difference]: With dead ends: 5202 [2023-12-22 02:33:06,978 INFO L226 Difference]: Without dead ends: 2700 [2023-12-22 02:33:06,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:06,982 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 806 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:06,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 823 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-12-22 02:33:07,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2023-12-22 02:33:07,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2571 states have (on average 1.3749513807856866) internal successors, (3535), 2573 states have internal predecessors, (3535), 71 states have call successors, (71), 56 states have call predecessors, (71), 57 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-22 02:33:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3678 transitions. [2023-12-22 02:33:07,158 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3678 transitions. Word has length 171 [2023-12-22 02:33:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:07,159 INFO L495 AbstractCegarLoop]: Abstraction has 2700 states and 3678 transitions. [2023-12-22 02:33:07,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3678 transitions. [2023-12-22 02:33:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:07,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:07,160 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] [2023-12-22 02:33:07,180 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 (39)] Ended with exit code 0 [2023-12-22 02:33:07,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-22 02:33:07,367 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:07,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 326038062, now seen corresponding path program 1 times [2023-12-22 02:33:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:07,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795718685] [2023-12-22 02:33:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:07,368 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 [2023-12-22 02:33:07,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:07,369 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-22 02:33:07,375 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 (40)] Waiting until timeout for monitored process [2023-12-22 02:33:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:07,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:07,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:07,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:07,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:07,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795718685] [2023-12-22 02:33:07,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795718685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:07,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:07,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:07,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613190610] [2023-12-22 02:33:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:07,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:07,604 INFO L87 Difference]: Start difference. First operand 2700 states and 3678 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:08,267 INFO L93 Difference]: Finished difference Result 5558 states and 7621 transitions. [2023-12-22 02:33:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:08,272 INFO L225 Difference]: With dead ends: 5558 [2023-12-22 02:33:08,272 INFO L226 Difference]: Without dead ends: 2878 [2023-12-22 02:33:08,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:33:08,276 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 798 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:08,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 816 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2023-12-22 02:33:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2878. [2023-12-22 02:33:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 2743 states have (on average 1.3627415238789646) internal successors, (3738), 2745 states have internal predecessors, (3738), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3885 transitions. [2023-12-22 02:33:08,391 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3885 transitions. Word has length 171 [2023-12-22 02:33:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:08,391 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 3885 transitions. [2023-12-22 02:33:08,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3885 transitions. [2023-12-22 02:33:08,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:08,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:08,392 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] [2023-12-22 02:33:08,406 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:08,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-22 02:33:08,597 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:08,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:08,597 INFO L85 PathProgramCache]: Analyzing trace with hash -125116471, now seen corresponding path program 1 times [2023-12-22 02:33:08,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:08,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137942305] [2023-12-22 02:33:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:08,598 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 [2023-12-22 02:33:08,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:08,599 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-22 02:33:08,601 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 (41)] Waiting until timeout for monitored process [2023-12-22 02:33:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:08,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:08,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:08,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:08,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:08,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137942305] [2023-12-22 02:33:08,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137942305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:08,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:08,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:08,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899037646] [2023-12-22 02:33:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:08,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:08,775 INFO L87 Difference]: Start difference. First operand 2878 states and 3885 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:08,966 INFO L93 Difference]: Finished difference Result 5899 states and 8014 transitions. [2023-12-22 02:33:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:08,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:08,975 INFO L225 Difference]: With dead ends: 5899 [2023-12-22 02:33:08,975 INFO L226 Difference]: Without dead ends: 3042 [2023-12-22 02:33:08,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:08,982 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 119 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1439 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2023-12-22 02:33:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 2882. [2023-12-22 02:33:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2747 states have (on average 1.3534765198398253) internal successors, (3718), 2749 states have internal predecessors, (3718), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:09,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3865 transitions. [2023-12-22 02:33:09,121 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3865 transitions. Word has length 171 [2023-12-22 02:33:09,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:09,121 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 3865 transitions. [2023-12-22 02:33:09,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:09,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3865 transitions. [2023-12-22 02:33:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:09,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:09,122 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] [2023-12-22 02:33:09,128 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:09,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-22 02:33:09,328 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:09,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:09,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1876769799, now seen corresponding path program 1 times [2023-12-22 02:33:09,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:09,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620848678] [2023-12-22 02:33:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:09,329 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 [2023-12-22 02:33:09,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:09,330 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-22 02:33:09,343 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 (42)] Waiting until timeout for monitored process [2023-12-22 02:33:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:09,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:09,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:09,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:09,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:09,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620848678] [2023-12-22 02:33:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620848678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:09,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:09,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305959460] [2023-12-22 02:33:09,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:09,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:09,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:09,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:09,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:09,490 INFO L87 Difference]: Start difference. First operand 2882 states and 3865 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:09,718 INFO L93 Difference]: Finished difference Result 5895 states and 7958 transitions. [2023-12-22 02:33:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:09,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:09,723 INFO L225 Difference]: With dead ends: 5895 [2023-12-22 02:33:09,723 INFO L226 Difference]: Without dead ends: 3034 [2023-12-22 02:33:09,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:09,726 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 110 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:09,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1443 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2023-12-22 02:33:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 2886. [2023-12-22 02:33:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2751 states have (on average 1.3442384587422755) internal successors, (3698), 2753 states have internal predecessors, (3698), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3845 transitions. [2023-12-22 02:33:09,840 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3845 transitions. Word has length 171 [2023-12-22 02:33:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:09,840 INFO L495 AbstractCegarLoop]: Abstraction has 2886 states and 3845 transitions. [2023-12-22 02:33:09,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3845 transitions. [2023-12-22 02:33:09,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:09,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:09,841 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] [2023-12-22 02:33:09,846 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 (42)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:10,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-22 02:33:10,047 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:10,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash 838185225, now seen corresponding path program 1 times [2023-12-22 02:33:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:10,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529089411] [2023-12-22 02:33:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:10,048 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 [2023-12-22 02:33:10,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:10,049 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-22 02:33:10,085 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 (43)] Waiting until timeout for monitored process [2023-12-22 02:33:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:10,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:10,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:10,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:10,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:10,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529089411] [2023-12-22 02:33:10,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529089411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:10,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:10,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:10,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047709638] [2023-12-22 02:33:10,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:10,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:10,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:10,196 INFO L87 Difference]: Start difference. First operand 2886 states and 3845 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:10,437 INFO L93 Difference]: Finished difference Result 5891 states and 7902 transitions. [2023-12-22 02:33:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:10,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:10,442 INFO L225 Difference]: With dead ends: 5891 [2023-12-22 02:33:10,442 INFO L226 Difference]: Without dead ends: 3026 [2023-12-22 02:33:10,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:10,446 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 101 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:10,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1441 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:10,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2023-12-22 02:33:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 2890. [2023-12-22 02:33:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2755 states have (on average 1.33502722323049) internal successors, (3678), 2757 states have internal predecessors, (3678), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3825 transitions. [2023-12-22 02:33:10,581 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3825 transitions. Word has length 171 [2023-12-22 02:33:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:10,581 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 3825 transitions. [2023-12-22 02:33:10,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3825 transitions. [2023-12-22 02:33:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:10,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:10,582 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] [2023-12-22 02:33:10,610 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 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:10,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-22 02:33:10,789 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:10,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2067488057, now seen corresponding path program 1 times [2023-12-22 02:33:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530838978] [2023-12-22 02:33:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:10,790 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 [2023-12-22 02:33:10,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:10,805 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-22 02:33:10,840 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 (44)] Waiting until timeout for monitored process [2023-12-22 02:33:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:10,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:10,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:11,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:11,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:11,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530838978] [2023-12-22 02:33:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530838978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:11,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37096092] [2023-12-22 02:33:11,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:11,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:11,011 INFO L87 Difference]: Start difference. First operand 2890 states and 3825 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:11,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:11,207 INFO L93 Difference]: Finished difference Result 5887 states and 7846 transitions. [2023-12-22 02:33:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:11,213 INFO L225 Difference]: With dead ends: 5887 [2023-12-22 02:33:11,213 INFO L226 Difference]: Without dead ends: 3018 [2023-12-22 02:33:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:11,221 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 92 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:11,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1442 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2023-12-22 02:33:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 2894. [2023-12-22 02:33:11,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2759 states have (on average 1.3258426966292134) internal successors, (3658), 2761 states have internal predecessors, (3658), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3805 transitions. [2023-12-22 02:33:11,420 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3805 transitions. Word has length 171 [2023-12-22 02:33:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 2894 states and 3805 transitions. [2023-12-22 02:33:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3805 transitions. [2023-12-22 02:33:11,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:11,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:11,423 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] [2023-12-22 02:33:11,430 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 (44)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:11,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 [2023-12-22 02:33:11,631 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:11,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1036447159, now seen corresponding path program 1 times [2023-12-22 02:33:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:11,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338853930] [2023-12-22 02:33:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:11,632 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 [2023-12-22 02:33:11,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:11,633 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-22 02:33:11,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 02:33:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:11,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:11,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:11,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:11,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338853930] [2023-12-22 02:33:11,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338853930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:11,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:11,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:11,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191061700] [2023-12-22 02:33:11,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:11,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:11,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:11,781 INFO L87 Difference]: Start difference. First operand 2894 states and 3805 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:11,988 INFO L93 Difference]: Finished difference Result 7275 states and 9680 transitions. [2023-12-22 02:33:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:11,997 INFO L225 Difference]: With dead ends: 7275 [2023-12-22 02:33:11,997 INFO L226 Difference]: Without dead ends: 4402 [2023-12-22 02:33:12,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:12,002 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 83 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1450 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2023-12-22 02:33:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 2946. [2023-12-22 02:33:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2811 states have (on average 1.319815012451085) internal successors, (3710), 2813 states have internal predecessors, (3710), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:12,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3857 transitions. [2023-12-22 02:33:12,126 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3857 transitions. Word has length 171 [2023-12-22 02:33:12,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:12,126 INFO L495 AbstractCegarLoop]: Abstraction has 2946 states and 3857 transitions. [2023-12-22 02:33:12,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:12,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3857 transitions. [2023-12-22 02:33:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:12,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:12,127 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] [2023-12-22 02:33:12,132 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:12,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /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 [2023-12-22 02:33:12,332 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:12,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1639545223, now seen corresponding path program 1 times [2023-12-22 02:33:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:12,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109839559] [2023-12-22 02:33:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:12,333 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 [2023-12-22 02:33:12,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:12,345 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-22 02:33:12,403 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 (46)] Waiting until timeout for monitored process [2023-12-22 02:33:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:12,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:12,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:12,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:12,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:12,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109839559] [2023-12-22 02:33:12,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109839559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:12,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:12,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:12,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893286199] [2023-12-22 02:33:12,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:12,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:12,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:12,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:12,522 INFO L87 Difference]: Start difference. First operand 2946 states and 3857 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:12,713 INFO L93 Difference]: Finished difference Result 5975 states and 7876 transitions. [2023-12-22 02:33:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:12,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:12,717 INFO L225 Difference]: With dead ends: 5975 [2023-12-22 02:33:12,717 INFO L226 Difference]: Without dead ends: 3050 [2023-12-22 02:33:12,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:12,721 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 74 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:12,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1443 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:12,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2023-12-22 02:33:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2950. [2023-12-22 02:33:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2815 states have (on average 1.310834813499112) internal successors, (3690), 2817 states have internal predecessors, (3690), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 3837 transitions. [2023-12-22 02:33:12,832 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 3837 transitions. Word has length 171 [2023-12-22 02:33:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:12,833 INFO L495 AbstractCegarLoop]: Abstraction has 2950 states and 3837 transitions. [2023-12-22 02:33:12,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 3837 transitions. [2023-12-22 02:33:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:12,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:12,833 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] [2023-12-22 02:33:12,838 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:13,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /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 [2023-12-22 02:33:13,038 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:13,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash 868811657, now seen corresponding path program 1 times [2023-12-22 02:33:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49800138] [2023-12-22 02:33:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:13,039 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 [2023-12-22 02:33:13,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:13,041 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-22 02:33:13,042 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 (47)] Waiting until timeout for monitored process [2023-12-22 02:33:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:13,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:13,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:13,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:13,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:13,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49800138] [2023-12-22 02:33:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49800138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475745905] [2023-12-22 02:33:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:13,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:13,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:13,196 INFO L87 Difference]: Start difference. First operand 2950 states and 3837 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:13,417 INFO L93 Difference]: Finished difference Result 5971 states and 7820 transitions. [2023-12-22 02:33:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:13,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:13,421 INFO L225 Difference]: With dead ends: 5971 [2023-12-22 02:33:13,421 INFO L226 Difference]: Without dead ends: 3042 [2023-12-22 02:33:13,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:13,425 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 65 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:13,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1444 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2023-12-22 02:33:13,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 2954. [2023-12-22 02:33:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2819 states have (on average 1.3018800993260022) internal successors, (3670), 2821 states have internal predecessors, (3670), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 3817 transitions. [2023-12-22 02:33:13,542 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 3817 transitions. Word has length 171 [2023-12-22 02:33:13,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:13,542 INFO L495 AbstractCegarLoop]: Abstraction has 2954 states and 3817 transitions. [2023-12-22 02:33:13,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 3817 transitions. [2023-12-22 02:33:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:13,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:13,543 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] [2023-12-22 02:33:13,548 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 (47)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:13,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /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 [2023-12-22 02:33:13,749 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:13,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:13,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1010319289, now seen corresponding path program 1 times [2023-12-22 02:33:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:13,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297591909] [2023-12-22 02:33:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:13,750 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 [2023-12-22 02:33:13,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:13,751 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-22 02:33:13,753 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 (48)] Waiting until timeout for monitored process [2023-12-22 02:33:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:13,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:13,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:13,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:13,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:13,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297591909] [2023-12-22 02:33:13,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297591909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:13,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:13,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:13,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96661012] [2023-12-22 02:33:13,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:13,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:13,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:13,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:13,896 INFO L87 Difference]: Start difference. First operand 2954 states and 3817 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:14,092 INFO L93 Difference]: Finished difference Result 5955 states and 7748 transitions. [2023-12-22 02:33:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:14,098 INFO L225 Difference]: With dead ends: 5955 [2023-12-22 02:33:14,098 INFO L226 Difference]: Without dead ends: 3022 [2023-12-22 02:33:14,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:14,101 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 47 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:14,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1446 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-12-22 02:33:14,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 2958. [2023-12-22 02:33:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2823 states have (on average 1.2929507616011335) internal successors, (3650), 2825 states have internal predecessors, (3650), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3797 transitions. [2023-12-22 02:33:14,249 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3797 transitions. Word has length 171 [2023-12-22 02:33:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:14,249 INFO L495 AbstractCegarLoop]: Abstraction has 2958 states and 3797 transitions. [2023-12-22 02:33:14,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3797 transitions. [2023-12-22 02:33:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:14,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:14,250 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] [2023-12-22 02:33:14,268 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 (48)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:14,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /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 [2023-12-22 02:33:14,456 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:14,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash -123096443, now seen corresponding path program 1 times [2023-12-22 02:33:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:14,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984407946] [2023-12-22 02:33:14,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:14,457 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 [2023-12-22 02:33:14,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:14,458 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-22 02:33:14,466 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 (49)] Waiting until timeout for monitored process [2023-12-22 02:33:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:14,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:14,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:14,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:14,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:14,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984407946] [2023-12-22 02:33:14,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984407946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:14,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:14,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:14,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121093075] [2023-12-22 02:33:14,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:14,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:14,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:14,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:14,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:14,601 INFO L87 Difference]: Start difference. First operand 2958 states and 3797 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:14,792 INFO L93 Difference]: Finished difference Result 5951 states and 7692 transitions. [2023-12-22 02:33:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:14,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:14,797 INFO L225 Difference]: With dead ends: 5951 [2023-12-22 02:33:14,797 INFO L226 Difference]: Without dead ends: 3014 [2023-12-22 02:33:14,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:14,800 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 38 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:14,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1447 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:14,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2023-12-22 02:33:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 2962. [2023-12-22 02:33:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 2827 states have (on average 1.284046692607004) internal successors, (3630), 2829 states have internal predecessors, (3630), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3777 transitions. [2023-12-22 02:33:14,914 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3777 transitions. Word has length 171 [2023-12-22 02:33:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:14,914 INFO L495 AbstractCegarLoop]: Abstraction has 2962 states and 3777 transitions. [2023-12-22 02:33:14,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3777 transitions. [2023-12-22 02:33:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:14,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:14,915 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] [2023-12-22 02:33:14,936 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:15,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /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 [2023-12-22 02:33:15,121 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:15,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash -615722617, now seen corresponding path program 1 times [2023-12-22 02:33:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357154338] [2023-12-22 02:33:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:15,122 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 [2023-12-22 02:33:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:15,123 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-22 02:33:15,157 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 (50)] Waiting until timeout for monitored process [2023-12-22 02:33:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:15,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:15,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:15,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:15,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:15,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357154338] [2023-12-22 02:33:15,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357154338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:15,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:15,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:15,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829523893] [2023-12-22 02:33:15,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:15,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:15,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:15,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:15,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:15,267 INFO L87 Difference]: Start difference. First operand 2962 states and 3777 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:15,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:15,481 INFO L93 Difference]: Finished difference Result 5947 states and 7636 transitions. [2023-12-22 02:33:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:15,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:15,488 INFO L225 Difference]: With dead ends: 5947 [2023-12-22 02:33:15,488 INFO L226 Difference]: Without dead ends: 3006 [2023-12-22 02:33:15,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:15,494 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 29 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:15,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1448 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2023-12-22 02:33:15,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 2966. [2023-12-22 02:33:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2831 states have (on average 1.2751677852348993) internal successors, (3610), 2833 states have internal predecessors, (3610), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 3757 transitions. [2023-12-22 02:33:15,624 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 3757 transitions. Word has length 171 [2023-12-22 02:33:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:15,624 INFO L495 AbstractCegarLoop]: Abstraction has 2966 states and 3757 transitions. [2023-12-22 02:33:15,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 3757 transitions. [2023-12-22 02:33:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:15,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:15,625 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] [2023-12-22 02:33:15,630 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 (50)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:15,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /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 [2023-12-22 02:33:15,830 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:15,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash -670115515, now seen corresponding path program 1 times [2023-12-22 02:33:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:15,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885389961] [2023-12-22 02:33:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:15,832 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 [2023-12-22 02:33:15,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:15,833 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-22 02:33:15,834 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 (51)] Waiting until timeout for monitored process [2023-12-22 02:33:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:15,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:15,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:15,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:15,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:15,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885389961] [2023-12-22 02:33:15,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885389961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:15,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:15,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:15,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640749767] [2023-12-22 02:33:15,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:15,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:15,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:15,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:15,988 INFO L87 Difference]: Start difference. First operand 2966 states and 3757 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:16,205 INFO L93 Difference]: Finished difference Result 5943 states and 7580 transitions. [2023-12-22 02:33:16,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:16,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:16,217 INFO L225 Difference]: With dead ends: 5943 [2023-12-22 02:33:16,218 INFO L226 Difference]: Without dead ends: 2998 [2023-12-22 02:33:16,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:16,222 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 20 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:16,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1449 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:16,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2023-12-22 02:33:16,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2970. [2023-12-22 02:33:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 2835 states have (on average 1.2663139329805997) internal successors, (3590), 2837 states have internal predecessors, (3590), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:33:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 3737 transitions. [2023-12-22 02:33:16,383 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 3737 transitions. Word has length 171 [2023-12-22 02:33:16,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:16,385 INFO L495 AbstractCegarLoop]: Abstraction has 2970 states and 3737 transitions. [2023-12-22 02:33:16,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:16,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 3737 transitions. [2023-12-22 02:33:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:16,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:16,386 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] [2023-12-22 02:33:16,393 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 (51)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:16,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /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 [2023-12-22 02:33:16,592 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:16,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash -109415737, now seen corresponding path program 1 times [2023-12-22 02:33:16,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:16,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848684683] [2023-12-22 02:33:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:16,593 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 [2023-12-22 02:33:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:16,595 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-12-22 02:33:16,643 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 (52)] Waiting until timeout for monitored process [2023-12-22 02:33:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:16,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:16,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:16,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:16,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848684683] [2023-12-22 02:33:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848684683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:16,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:16,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:33:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383252444] [2023-12-22 02:33:16,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:16,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:16,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:16,862 INFO L87 Difference]: Start difference. First operand 2970 states and 3737 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:17,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:17,165 INFO L93 Difference]: Finished difference Result 8653 states and 10909 transitions. [2023-12-22 02:33:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:33:17,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:17,175 INFO L225 Difference]: With dead ends: 8653 [2023-12-22 02:33:17,176 INFO L226 Difference]: Without dead ends: 5704 [2023-12-22 02:33:17,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:17,180 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 407 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:17,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 991 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2023-12-22 02:33:17,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5700. [2023-12-22 02:33:17,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5443 states have (on average 1.2579459856696675) internal successors, (6847), 5446 states have internal predecessors, (6847), 138 states have call successors, (138), 116 states have call predecessors, (138), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-22 02:33:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 7125 transitions. [2023-12-22 02:33:17,434 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 7125 transitions. Word has length 171 [2023-12-22 02:33:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:17,435 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 7125 transitions. [2023-12-22 02:33:17,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 7125 transitions. [2023-12-22 02:33:17,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:17,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:17,436 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] [2023-12-22 02:33:17,441 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 (52)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:17,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /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 [2023-12-22 02:33:17,641 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:17,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash 130851592, now seen corresponding path program 1 times [2023-12-22 02:33:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:17,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318136546] [2023-12-22 02:33:17,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:17,642 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 [2023-12-22 02:33:17,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:17,643 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-22 02:33:17,645 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 (53)] Waiting until timeout for monitored process [2023-12-22 02:33:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:17,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:17,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:17,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:17,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:17,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318136546] [2023-12-22 02:33:17,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318136546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:17,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:17,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:17,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568118477] [2023-12-22 02:33:17,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:17,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:17,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:17,808 INFO L87 Difference]: Start difference. First operand 5700 states and 7125 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:18,187 INFO L93 Difference]: Finished difference Result 11639 states and 14668 transitions. [2023-12-22 02:33:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:18,197 INFO L225 Difference]: With dead ends: 11639 [2023-12-22 02:33:18,198 INFO L226 Difference]: Without dead ends: 5960 [2023-12-22 02:33:18,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:18,205 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 11 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:18,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1458 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-12-22 02:33:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5752. [2023-12-22 02:33:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 5495 states have (on average 1.2511373976342128) internal successors, (6875), 5498 states have internal predecessors, (6875), 138 states have call successors, (138), 116 states have call predecessors, (138), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-22 02:33:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 7153 transitions. [2023-12-22 02:33:18,468 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 7153 transitions. Word has length 171 [2023-12-22 02:33:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:18,468 INFO L495 AbstractCegarLoop]: Abstraction has 5752 states and 7153 transitions. [2023-12-22 02:33:18,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 7153 transitions. [2023-12-22 02:33:18,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:18,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:18,469 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] [2023-12-22 02:33:18,475 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 (53)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:18,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /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 [2023-12-22 02:33:18,675 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:18,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1006870598, now seen corresponding path program 1 times [2023-12-22 02:33:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960927838] [2023-12-22 02:33:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:18,676 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 [2023-12-22 02:33:18,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:18,677 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-22 02:33:18,712 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 (54)] Waiting until timeout for monitored process [2023-12-22 02:33:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:18,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:33:18,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:18,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:18,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960927838] [2023-12-22 02:33:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960927838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:18,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:18,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803933230] [2023-12-22 02:33:18,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:18,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:18,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:18,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:18,844 INFO L87 Difference]: Start difference. First operand 5752 states and 7153 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:19,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:19,174 INFO L93 Difference]: Finished difference Result 11491 states and 14391 transitions. [2023-12-22 02:33:19,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:33:19,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-22 02:33:19,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:19,183 INFO L225 Difference]: With dead ends: 11491 [2023-12-22 02:33:19,184 INFO L226 Difference]: Without dead ends: 5760 [2023-12-22 02:33:19,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:19,189 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:19,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1450 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2023-12-22 02:33:19,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5756. [2023-12-22 02:33:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5499 states have (on average 1.2422258592471358) internal successors, (6831), 5502 states have internal predecessors, (6831), 138 states have call successors, (138), 116 states have call predecessors, (138), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-22 02:33:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 7109 transitions. [2023-12-22 02:33:19,418 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 7109 transitions. Word has length 171 [2023-12-22 02:33:19,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:19,418 INFO L495 AbstractCegarLoop]: Abstraction has 5756 states and 7109 transitions. [2023-12-22 02:33:19,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:33:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 7109 transitions. [2023-12-22 02:33:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:33:19,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:19,419 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] [2023-12-22 02:33:19,443 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 (54)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:19,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /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 [2023-12-22 02:33:19,624 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:19,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash 991351880, now seen corresponding path program 1 times [2023-12-22 02:33:19,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:19,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185986427] [2023-12-22 02:33:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:19,625 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 [2023-12-22 02:33:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:19,626 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-22 02:33:19,628 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 (55)] Waiting until timeout for monitored process [2023-12-22 02:33:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:19,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:19,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:33:19,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:19,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185986427] [2023-12-22 02:33:19,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185986427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:19,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:33:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830020950] [2023-12-22 02:33:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:19,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:19,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:19,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:19,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:19,949 INFO L87 Difference]: Start difference. First operand 5756 states and 7109 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:33:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:20,469 INFO L93 Difference]: Finished difference Result 17153 states and 21277 transitions. [2023-12-22 02:33:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:33:20,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 171 [2023-12-22 02:33:20,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:20,492 INFO L225 Difference]: With dead ends: 17153 [2023-12-22 02:33:20,492 INFO L226 Difference]: Without dead ends: 11418 [2023-12-22 02:33:20,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:20,503 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 354 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:20,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 927 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2023-12-22 02:33:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 11414. [2023-12-22 02:33:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11414 states, 10905 states have (on average 1.236772122879413) internal successors, (13487), 10914 states have internal predecessors, (13487), 272 states have call successors, (272), 232 states have call predecessors, (272), 236 states have return successors, (276), 268 states have call predecessors, (276), 272 states have call successors, (276) [2023-12-22 02:33:21,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 14035 transitions. [2023-12-22 02:33:21,036 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 14035 transitions. Word has length 171 [2023-12-22 02:33:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:21,036 INFO L495 AbstractCegarLoop]: Abstraction has 11414 states and 14035 transitions. [2023-12-22 02:33:21,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:33:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 14035 transitions. [2023-12-22 02:33:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-22 02:33:21,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:21,043 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:21,064 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 (55)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:21,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /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 [2023-12-22 02:33:21,250 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:21,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:21,250 INFO L85 PathProgramCache]: Analyzing trace with hash 887670294, now seen corresponding path program 1 times [2023-12-22 02:33:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:21,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209064586] [2023-12-22 02:33:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:21,251 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 [2023-12-22 02:33:21,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:21,252 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-22 02:33:21,254 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 (56)] Waiting until timeout for monitored process [2023-12-22 02:33:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:21,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:21,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:33:21,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:21,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:21,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209064586] [2023-12-22 02:33:21,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209064586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:21,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:21,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:33:21,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873822556] [2023-12-22 02:33:21,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:21,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:21,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:21,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:21,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:21,640 INFO L87 Difference]: Start difference. First operand 11414 states and 14035 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:33:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:22,701 INFO L93 Difference]: Finished difference Result 33315 states and 41176 transitions. [2023-12-22 02:33:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:33:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 275 [2023-12-22 02:33:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:22,745 INFO L225 Difference]: With dead ends: 33315 [2023-12-22 02:33:22,746 INFO L226 Difference]: Without dead ends: 21922 [2023-12-22 02:33:22,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:22,764 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 348 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:22,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 933 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21922 states. [2023-12-22 02:33:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21922 to 21912. [2023-12-22 02:33:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21912 states, 20931 states have (on average 1.232955902728011) internal successors, (25807), 20948 states have internal predecessors, (25807), 524 states have call successors, (524), 448 states have call predecessors, (524), 456 states have return successors, (532), 516 states have call predecessors, (532), 524 states have call successors, (532) [2023-12-22 02:33:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21912 states to 21912 states and 26863 transitions. [2023-12-22 02:33:23,878 INFO L78 Accepts]: Start accepts. Automaton has 21912 states and 26863 transitions. Word has length 275 [2023-12-22 02:33:23,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:23,878 INFO L495 AbstractCegarLoop]: Abstraction has 21912 states and 26863 transitions. [2023-12-22 02:33:23,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:33:23,879 INFO L276 IsEmpty]: Start isEmpty. Operand 21912 states and 26863 transitions. [2023-12-22 02:33:23,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-22 02:33:23,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:23,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:23,908 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 (56)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:24,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /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 [2023-12-22 02:33:24,096 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:24,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:24,097 INFO L85 PathProgramCache]: Analyzing trace with hash 369857399, now seen corresponding path program 1 times [2023-12-22 02:33:24,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:24,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606084827] [2023-12-22 02:33:24,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:24,097 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 [2023-12-22 02:33:24,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:24,099 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-22 02:33:24,105 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 (57)] Waiting until timeout for monitored process [2023-12-22 02:33:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:24,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:33:24,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:33:24,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:24,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:24,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606084827] [2023-12-22 02:33:24,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606084827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:24,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:24,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:24,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625562353] [2023-12-22 02:33:24,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:24,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:24,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:24,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:24,552 INFO L87 Difference]: Start difference. First operand 21912 states and 26863 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:26,915 INFO L93 Difference]: Finished difference Result 65320 states and 79998 transitions. [2023-12-22 02:33:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:26,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 275 [2023-12-22 02:33:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:27,009 INFO L225 Difference]: With dead ends: 65320 [2023-12-22 02:33:27,009 INFO L226 Difference]: Without dead ends: 43430 [2023-12-22 02:33:27,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:27,036 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 722 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:27,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1410 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43430 states. [2023-12-22 02:33:29,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43430 to 43428. [2023-12-22 02:33:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43428 states, 41484 states have (on average 1.2281843602352713) internal successors, (50950), 41526 states have internal predecessors, (50950), 1031 states have call successors, (1031), 880 states have call predecessors, (1031), 912 states have return successors, (1111), 1023 states have call predecessors, (1111), 1031 states have call successors, (1111) [2023-12-22 02:33:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43428 states to 43428 states and 53092 transitions. [2023-12-22 02:33:29,505 INFO L78 Accepts]: Start accepts. Automaton has 43428 states and 53092 transitions. Word has length 275 [2023-12-22 02:33:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:29,506 INFO L495 AbstractCegarLoop]: Abstraction has 43428 states and 53092 transitions. [2023-12-22 02:33:29,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand 43428 states and 53092 transitions. [2023-12-22 02:33:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-22 02:33:29,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:29,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:29,547 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 (57)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:29,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /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 [2023-12-22 02:33:29,733 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:29,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1248125387, now seen corresponding path program 1 times [2023-12-22 02:33:29,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:29,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984341418] [2023-12-22 02:33:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:29,734 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 [2023-12-22 02:33:29,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:29,735 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-22 02:33:29,737 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 (58)] Waiting until timeout for monitored process [2023-12-22 02:33:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:29,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:29,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:33:29,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:29,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:29,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984341418] [2023-12-22 02:33:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984341418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:29,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:33:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057298017] [2023-12-22 02:33:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:29,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:29,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:29,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:29,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:29,938 INFO L87 Difference]: Start difference. First operand 43428 states and 53092 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:33:31,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:31,538 INFO L93 Difference]: Finished difference Result 76344 states and 93297 transitions. [2023-12-22 02:33:31,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:33:31,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 275 [2023-12-22 02:33:31,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:31,602 INFO L225 Difference]: With dead ends: 76344 [2023-12-22 02:33:31,602 INFO L226 Difference]: Without dead ends: 32938 [2023-12-22 02:33:31,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:31,633 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 525 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:31,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 484 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32938 states. [2023-12-22 02:33:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32938 to 32938. [2023-12-22 02:33:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32938 states, 31469 states have (on average 1.227811497028822) internal successors, (38638), 31502 states have internal predecessors, (38638), 776 states have call successors, (776), 664 states have call predecessors, (776), 692 states have return successors, (828), 772 states have call predecessors, (828), 776 states have call successors, (828) [2023-12-22 02:33:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32938 states to 32938 states and 40242 transitions. [2023-12-22 02:33:33,509 INFO L78 Accepts]: Start accepts. Automaton has 32938 states and 40242 transitions. Word has length 275 [2023-12-22 02:33:33,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:33,509 INFO L495 AbstractCegarLoop]: Abstraction has 32938 states and 40242 transitions. [2023-12-22 02:33:33,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:33:33,509 INFO L276 IsEmpty]: Start isEmpty. Operand 32938 states and 40242 transitions. [2023-12-22 02:33:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-22 02:33:33,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:33,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:33,531 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 (58)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:33,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /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 [2023-12-22 02:33:33,731 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:33,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2008548626, now seen corresponding path program 1 times [2023-12-22 02:33:33,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:33,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329950825] [2023-12-22 02:33:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:33,732 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 [2023-12-22 02:33:33,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:33,733 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-22 02:33:33,734 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 (59)] Waiting until timeout for monitored process [2023-12-22 02:33:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:33,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:33:33,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:33:34,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:34,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329950825] [2023-12-22 02:33:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329950825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:34,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894478836] [2023-12-22 02:33:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:34,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:34,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:34,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:34,226 INFO L87 Difference]: Start difference. First operand 32938 states and 40242 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:37,492 INFO L93 Difference]: Finished difference Result 96870 states and 118308 transitions. [2023-12-22 02:33:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 277 [2023-12-22 02:33:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:37,642 INFO L225 Difference]: With dead ends: 96870 [2023-12-22 02:33:37,642 INFO L226 Difference]: Without dead ends: 63954 [2023-12-22 02:33:37,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:37,667 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 741 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:37,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 975 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:33:37,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63954 states. [2023-12-22 02:33:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63954 to 63952. [2023-12-22 02:33:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63952 states, 61099 states have (on average 1.2259120443869784) internal successors, (74902), 61172 states have internal predecessors, (74902), 1500 states have call successors, (1500), 1280 states have call predecessors, (1500), 1352 states have return successors, (1644), 1500 states have call predecessors, (1644), 1500 states have call successors, (1644) [2023-12-22 02:33:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63952 states to 63952 states and 78046 transitions. [2023-12-22 02:33:41,041 INFO L78 Accepts]: Start accepts. Automaton has 63952 states and 78046 transitions. Word has length 277 [2023-12-22 02:33:41,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:41,041 INFO L495 AbstractCegarLoop]: Abstraction has 63952 states and 78046 transitions. [2023-12-22 02:33:41,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:41,042 INFO L276 IsEmpty]: Start isEmpty. Operand 63952 states and 78046 transitions. [2023-12-22 02:33:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 02:33:41,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:41,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:41,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:41,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /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 [2023-12-22 02:33:41,296 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:41,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 470519607, now seen corresponding path program 1 times [2023-12-22 02:33:41,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:41,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883376402] [2023-12-22 02:33:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:41,298 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 [2023-12-22 02:33:41,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:41,300 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-22 02:33:41,336 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 (60)] Waiting until timeout for monitored process [2023-12-22 02:33:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:41,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:33:41,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:33:41,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:41,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:41,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883376402] [2023-12-22 02:33:41,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883376402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:41,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:41,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:33:41,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078809417] [2023-12-22 02:33:41,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:41,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:33:41,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:41,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:33:41,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:33:41,733 INFO L87 Difference]: Start difference. First operand 63952 states and 78046 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:48,415 INFO L93 Difference]: Finished difference Result 193006 states and 235370 transitions. [2023-12-22 02:33:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:33:48,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 279 [2023-12-22 02:33:48,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:48,685 INFO L225 Difference]: With dead ends: 193006 [2023-12-22 02:33:48,686 INFO L226 Difference]: Without dead ends: 129076 [2023-12-22 02:33:48,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:48,862 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 713 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:48,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1355 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:48,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129076 states. [2023-12-22 02:33:55,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129076 to 129074. [2023-12-22 02:33:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129074 states, 123370 states have (on average 1.2241063467617734) internal successors, (151018), 123540 states have internal predecessors, (151018), 2951 states have call successors, (2951), 2560 states have call predecessors, (2951), 2752 states have return successors, (3311), 2975 states have call predecessors, (3311), 2951 states have call successors, (3311) [2023-12-22 02:33:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129074 states to 129074 states and 157280 transitions. [2023-12-22 02:33:55,734 INFO L78 Accepts]: Start accepts. Automaton has 129074 states and 157280 transitions. Word has length 279 [2023-12-22 02:33:55,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:55,736 INFO L495 AbstractCegarLoop]: Abstraction has 129074 states and 157280 transitions. [2023-12-22 02:33:55,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:33:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 129074 states and 157280 transitions. [2023-12-22 02:33:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 02:33:55,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:55,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:55,783 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 (60)] Forceful destruction successful, exit code 0 [2023-12-22 02:33:55,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /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 [2023-12-22 02:33:55,984 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:55,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:55,984 INFO L85 PathProgramCache]: Analyzing trace with hash 367223413, now seen corresponding path program 1 times [2023-12-22 02:33:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:55,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537210459] [2023-12-22 02:33:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:55,985 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 [2023-12-22 02:33:55,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:55,986 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-22 02:33:55,987 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 (61)] Waiting until timeout for monitored process [2023-12-22 02:33:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:56,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:56,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:33:56,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:56,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537210459] [2023-12-22 02:33:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537210459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:33:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939871904] [2023-12-22 02:33:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:56,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:56,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:56,221 INFO L87 Difference]: Start difference. First operand 129074 states and 157280 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:34:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:02,409 INFO L93 Difference]: Finished difference Result 258112 states and 314497 transitions. [2023-12-22 02:34:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 279 [2023-12-22 02:34:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:02,693 INFO L225 Difference]: With dead ends: 258112 [2023-12-22 02:34:02,694 INFO L226 Difference]: Without dead ends: 129060 [2023-12-22 02:34:02,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:02,789 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 522 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:02,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 483 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129060 states. [2023-12-22 02:34:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129060 to 129060. [2023-12-22 02:34:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129060 states, 123359 states have (on average 1.2240452662554009) internal successors, (150997), 123528 states have internal predecessors, (150997), 2948 states have call successors, (2948), 2560 states have call predecessors, (2948), 2752 states have return successors, (3308), 2972 states have call predecessors, (3308), 2948 states have call successors, (3308)