/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/Problem05_label46+token_ring.13.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:33:48,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:33:48,175 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:33:48,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:33:48,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:33:48,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:33:48,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:33:48,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:33:48,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:33:48,195 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:33:48,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:33:48,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:33:48,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:33:48,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:33:48,196 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:33:48,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:33:48,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:33:48,197 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:33:48,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:33:48,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:33:48,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:33:48,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:33:48,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:33:48,199 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:33:48,199 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:33:48,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:33:48,199 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:33:48,199 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:33:48,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:33:48,200 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:33:48,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:33:48,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:33:48,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:33:48,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:33:48,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:33:48,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:33:48,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:33:48,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:33:48,202 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:33:48,202 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:33:48,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:33:48,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:33:48,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:33:48,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:33:48,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:33:48,204 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:33:48,204 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:33:48,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:33:48,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:33:48,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:33:48,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:33:48,411 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:33:48,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-1.c [2023-12-16 07:33:49,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:33:49,820 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:33:49,820 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-1.c [2023-12-16 07:33:49,868 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4cb5c4d/bf3ad7ba73d04111a510fe6a56ba125e/FLAG6eb8a2454 [2023-12-16 07:33:49,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4cb5c4d/bf3ad7ba73d04111a510fe6a56ba125e [2023-12-16 07:33:49,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:33:49,933 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:33:49,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:33:49,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:33:49,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:33:49,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:33:49" (1/1) ... [2023-12-16 07:33:49,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a77cb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:49, skipping insertion in model container [2023-12-16 07:33:49,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:33:49" (1/1) ... [2023-12-16 07:33:50,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:33:51,387 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/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2023-12-16 07:33:51,438 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/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2023-12-16 07:33:51,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:33:51,689 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:33:52,266 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/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2023-12-16 07:33:52,269 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/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2023-12-16 07:33:52,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:33:52,344 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:33:52,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52 WrapperNode [2023-12-16 07:33:52,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:33:52,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:33:52,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:33:52,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:33:52,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,759 INFO L138 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13254 [2023-12-16 07:33:52,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:33:52,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:33:52,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:33:52,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:33:52,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,920 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:33:52,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:52,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:33:53,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:33:53,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:33:53,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:33:53,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (1/1) ... [2023-12-16 07:33:53,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:33:53,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:33:53,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:33:53,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:33:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:33:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:33:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:33:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:33:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:33:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:33:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:33:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:33:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 07:33:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 07:33:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:33:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:33:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:33:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:33:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:33:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:33:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:33:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:33:53,380 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:33:53,382 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:34:00,932 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:34:01,039 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:34:01,039 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 07:34:01,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:34:01 BoogieIcfgContainer [2023-12-16 07:34:01,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:34:01,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:34:01,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:34:01,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:34:01,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:33:49" (1/3) ... [2023-12-16 07:34:01,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ee3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:34:01, skipping insertion in model container [2023-12-16 07:34:01,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:33:52" (2/3) ... [2023-12-16 07:34:01,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ee3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:34:01, skipping insertion in model container [2023-12-16 07:34:01,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:34:01" (3/3) ... [2023-12-16 07:34:01,046 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.13.cil-1.c [2023-12-16 07:34:01,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:34:01,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:34:01,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:34:01,134 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;@36daed3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:34:01,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:34:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 07:34:01,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:01,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:01,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:01,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:01,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash -445430764, now seen corresponding path program 1 times [2023-12-16 07:34:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508895616] [2023-12-16 07:34:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:01,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:01,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:01,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:01,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:34:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:01,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:01,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:01,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:01,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508895616] [2023-12-16 07:34:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508895616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:01,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:01,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319282701] [2023-12-16 07:34:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:01,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:01,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:01,566 INFO L87 Difference]: Start difference. First operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:01,779 INFO L93 Difference]: Finished difference Result 4997 states and 9339 transitions. [2023-12-16 07:34:01,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:01,781 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:01,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:01,803 INFO L225 Difference]: With dead ends: 4997 [2023-12-16 07:34:01,803 INFO L226 Difference]: Without dead ends: 2497 [2023-12-16 07:34:01,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:01,818 INFO L413 NwaCegarLoop]: 4527 mSDtfsCounter, 609 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 8486 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:01,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 8486 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2023-12-16 07:34:01,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2497. [2023-12-16 07:34:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8357723577235772) internal successors, (4516), 2463 states have internal predecessors, (4516), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 07:34:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4572 transitions. [2023-12-16 07:34:01,944 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4572 transitions. Word has length 172 [2023-12-16 07:34:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:01,945 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4572 transitions. [2023-12-16 07:34:01,946 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4572 transitions. [2023-12-16 07:34:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:01,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:01,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:01,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:02,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:02,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:02,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:02,160 INFO L85 PathProgramCache]: Analyzing trace with hash -943987566, now seen corresponding path program 1 times [2023-12-16 07:34:02,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:02,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422509218] [2023-12-16 07:34:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:02,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:02,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:02,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:34:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:02,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:02,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:02,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:02,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422509218] [2023-12-16 07:34:02,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422509218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:02,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:02,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757623543] [2023-12-16 07:34:02,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:02,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:02,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:02,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:02,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:02,402 INFO L87 Difference]: Start difference. First operand 2497 states and 4572 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:02,548 INFO L93 Difference]: Finished difference Result 2858 states and 5159 transitions. [2023-12-16 07:34:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:02,549 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:02,561 INFO L225 Difference]: With dead ends: 2858 [2023-12-16 07:34:02,561 INFO L226 Difference]: Without dead ends: 2497 [2023-12-16 07:34:02,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:02,564 INFO L413 NwaCegarLoop]: 4523 mSDtfsCounter, 597 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 8480 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 [2023-12-16 07:34:02,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 8480 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2023-12-16 07:34:02,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2497. [2023-12-16 07:34:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8353658536585367) internal successors, (4515), 2463 states have internal predecessors, (4515), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 07:34:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4571 transitions. [2023-12-16 07:34:02,635 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4571 transitions. Word has length 172 [2023-12-16 07:34:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:02,635 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4571 transitions. [2023-12-16 07:34:02,635 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4571 transitions. [2023-12-16 07:34:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:02,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:02,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:02,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:02,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:02,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:02,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 825484048, now seen corresponding path program 1 times [2023-12-16 07:34:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410178737] [2023-12-16 07:34:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:02,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:02,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:02,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:34:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:03,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:03,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:03,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:03,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:03,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410178737] [2023-12-16 07:34:03,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410178737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:03,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:03,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:03,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249026634] [2023-12-16 07:34:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:03,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:03,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:03,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:03,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:03,133 INFO L87 Difference]: Start difference. First operand 2497 states and 4571 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, (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) [2023-12-16 07:34:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:04,061 INFO L93 Difference]: Finished difference Result 3264 states and 5838 transitions. [2023-12-16 07:34:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:34:04,062 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, (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 172 [2023-12-16 07:34:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:04,073 INFO L225 Difference]: With dead ends: 3264 [2023-12-16 07:34:04,073 INFO L226 Difference]: Without dead ends: 2907 [2023-12-16 07:34:04,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:04,077 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 5144 mSDsluCounter, 9058 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5165 SdHoareTripleChecker+Valid, 13467 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:04,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5165 Valid, 13467 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 07:34:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2023-12-16 07:34:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2874. [2023-12-16 07:34:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8133903133903133) internal successors, (5092), 2812 states have internal predecessors, (5092), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5193 transitions. [2023-12-16 07:34:04,146 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5193 transitions. Word has length 172 [2023-12-16 07:34:04,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:04,146 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5193 transitions. [2023-12-16 07:34:04,146 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, (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) [2023-12-16 07:34:04,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5193 transitions. [2023-12-16 07:34:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:04,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:04,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:04,163 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 [2023-12-16 07:34:04,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:04,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:04,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1830589324, now seen corresponding path program 1 times [2023-12-16 07:34:04,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:04,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29549834] [2023-12-16 07:34:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:04,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:04,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:04,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:34:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:04,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:04,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:04,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:04,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:04,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29549834] [2023-12-16 07:34:04,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29549834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:04,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:04,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:04,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467044201] [2023-12-16 07:34:04,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:04,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:04,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:04,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:04,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:04,603 INFO L87 Difference]: Start difference. First operand 2874 states and 5193 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, (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) [2023-12-16 07:34:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:05,209 INFO L93 Difference]: Finished difference Result 3608 states and 6402 transitions. [2023-12-16 07:34:05,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:05,210 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, (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 172 [2023-12-16 07:34:05,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:05,219 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:05,220 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:05,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:05,223 INFO L413 NwaCegarLoop]: 4345 mSDtfsCounter, 4791 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 12869 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:05,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4812 Valid, 12869 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.810897435897436) internal successors, (5085), 2812 states have internal predecessors, (5085), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5186 transitions. [2023-12-16 07:34:05,312 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5186 transitions. Word has length 172 [2023-12-16 07:34:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:05,313 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5186 transitions. [2023-12-16 07:34:05,313 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, (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) [2023-12-16 07:34:05,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5186 transitions. [2023-12-16 07:34:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:05,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:05,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:05,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:05,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:05,526 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:05,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1185029232, now seen corresponding path program 1 times [2023-12-16 07:34:05,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:05,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487257163] [2023-12-16 07:34:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:05,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:05,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:05,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:05,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:34:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:05,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:05,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:05,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:05,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:05,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487257163] [2023-12-16 07:34:05,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487257163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:05,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:05,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:05,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794281730] [2023-12-16 07:34:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:05,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:05,776 INFO L87 Difference]: Start difference. First operand 2874 states and 5186 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, (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) [2023-12-16 07:34:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:06,289 INFO L93 Difference]: Finished difference Result 3608 states and 6388 transitions. [2023-12-16 07:34:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:06,291 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, (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 172 [2023-12-16 07:34:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:06,306 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:06,306 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:06,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:06,310 INFO L413 NwaCegarLoop]: 4342 mSDtfsCounter, 4784 mSDsluCounter, 8520 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 12862 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:06,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 12862 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:06,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8084045584045585) internal successors, (5078), 2812 states have internal predecessors, (5078), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5179 transitions. [2023-12-16 07:34:06,372 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5179 transitions. Word has length 172 [2023-12-16 07:34:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:06,373 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5179 transitions. [2023-12-16 07:34:06,373 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, (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) [2023-12-16 07:34:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5179 transitions. [2023-12-16 07:34:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:06,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:06,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:06,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:06,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:06,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:06,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:06,580 INFO L85 PathProgramCache]: Analyzing trace with hash -151296876, now seen corresponding path program 1 times [2023-12-16 07:34:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052795872] [2023-12-16 07:34:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:06,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:06,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:06,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:34:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:06,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:06,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:06,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:06,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:06,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052795872] [2023-12-16 07:34:06,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052795872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:06,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:06,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097231301] [2023-12-16 07:34:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:06,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:06,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:06,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:06,805 INFO L87 Difference]: Start difference. First operand 2874 states and 5179 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, (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) [2023-12-16 07:34:07,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:07,326 INFO L93 Difference]: Finished difference Result 3608 states and 6374 transitions. [2023-12-16 07:34:07,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:07,327 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, (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 172 [2023-12-16 07:34:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:07,338 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:07,338 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:07,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:07,344 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 4778 mSDsluCounter, 8516 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4799 SdHoareTripleChecker+Valid, 12855 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:07,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4799 Valid, 12855 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:07,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8059116809116809) internal successors, (5071), 2812 states have internal predecessors, (5071), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5172 transitions. [2023-12-16 07:34:07,439 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5172 transitions. Word has length 172 [2023-12-16 07:34:07,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:07,440 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5172 transitions. [2023-12-16 07:34:07,440 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, (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) [2023-12-16 07:34:07,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5172 transitions. [2023-12-16 07:34:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:07,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:07,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:07,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:07,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:07,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:07,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1226329328, now seen corresponding path program 1 times [2023-12-16 07:34:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465242094] [2023-12-16 07:34:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:07,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:07,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:07,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:07,668 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 (8)] Waiting until timeout for monitored process [2023-12-16 07:34:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:07,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:07,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:07,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:07,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465242094] [2023-12-16 07:34:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465242094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:07,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:07,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954890583] [2023-12-16 07:34:07,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:07,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:07,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:07,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:07,886 INFO L87 Difference]: Start difference. First operand 2874 states and 5172 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, (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) [2023-12-16 07:34:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:08,434 INFO L93 Difference]: Finished difference Result 3608 states and 6360 transitions. [2023-12-16 07:34:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:08,438 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, (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 172 [2023-12-16 07:34:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:08,449 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:08,449 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:08,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:08,453 INFO L413 NwaCegarLoop]: 4336 mSDtfsCounter, 4772 mSDsluCounter, 8512 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 12848 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:08,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 12848 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8034188034188035) internal successors, (5064), 2812 states have internal predecessors, (5064), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5165 transitions. [2023-12-16 07:34:08,522 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5165 transitions. Word has length 172 [2023-12-16 07:34:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:08,522 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5165 transitions. [2023-12-16 07:34:08,523 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, (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) [2023-12-16 07:34:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5165 transitions. [2023-12-16 07:34:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:08,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:08,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:08,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:08,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:08,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:08,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1094296852, now seen corresponding path program 1 times [2023-12-16 07:34:08,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:08,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027298713] [2023-12-16 07:34:08,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:08,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:08,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:08,736 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:08,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:34:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:08,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:08,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:08,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:08,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027298713] [2023-12-16 07:34:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027298713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:08,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:08,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541848976] [2023-12-16 07:34:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:08,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:08,943 INFO L87 Difference]: Start difference. First operand 2874 states and 5165 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, (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) [2023-12-16 07:34:09,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:09,486 INFO L93 Difference]: Finished difference Result 3608 states and 6346 transitions. [2023-12-16 07:34:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:09,487 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, (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 172 [2023-12-16 07:34:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:09,495 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:09,495 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:09,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:09,509 INFO L413 NwaCegarLoop]: 4333 mSDtfsCounter, 4766 mSDsluCounter, 8508 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 12841 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:09,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 12841 Invalid, 571 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8009259259259258) internal successors, (5057), 2812 states have internal predecessors, (5057), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5158 transitions. [2023-12-16 07:34:09,568 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5158 transitions. Word has length 172 [2023-12-16 07:34:09,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:09,569 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5158 transitions. [2023-12-16 07:34:09,569 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, (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) [2023-12-16 07:34:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5158 transitions. [2023-12-16 07:34:09,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:09,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:09,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:09,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:09,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:09,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:09,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1432584402, now seen corresponding path program 1 times [2023-12-16 07:34:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:09,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608721563] [2023-12-16 07:34:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:09,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:09,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:09,778 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:09,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:34:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:09,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:09,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:09,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:09,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608721563] [2023-12-16 07:34:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608721563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:09,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904097067] [2023-12-16 07:34:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:09,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:09,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:09,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:09,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:09,988 INFO L87 Difference]: Start difference. First operand 2874 states and 5158 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, (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) [2023-12-16 07:34:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:10,455 INFO L93 Difference]: Finished difference Result 3608 states and 6332 transitions. [2023-12-16 07:34:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:10,460 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, (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 172 [2023-12-16 07:34:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:10,472 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:10,472 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:10,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:10,474 INFO L413 NwaCegarLoop]: 4330 mSDtfsCounter, 4760 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 12834 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:10,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 12834 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.7984330484330484) internal successors, (5050), 2812 states have internal predecessors, (5050), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5151 transitions. [2023-12-16 07:34:10,531 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5151 transitions. Word has length 172 [2023-12-16 07:34:10,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:10,532 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5151 transitions. [2023-12-16 07:34:10,532 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, (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) [2023-12-16 07:34:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5151 transitions. [2023-12-16 07:34:10,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:10,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:10,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:10,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:10,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:10,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:10,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 13771734, now seen corresponding path program 1 times [2023-12-16 07:34:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421501822] [2023-12-16 07:34:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:10,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:10,745 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:10,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:34:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:10,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:10,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:10,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:10,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:10,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:10,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421501822] [2023-12-16 07:34:10,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421501822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:10,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:10,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:10,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862636800] [2023-12-16 07:34:10,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:10,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:10,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:10,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:10,942 INFO L87 Difference]: Start difference. First operand 2874 states and 5151 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, (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) [2023-12-16 07:34:11,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:11,418 INFO L93 Difference]: Finished difference Result 3608 states and 6318 transitions. [2023-12-16 07:34:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:11,418 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, (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 172 [2023-12-16 07:34:11,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:11,424 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:11,424 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:11,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:11,427 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 4754 mSDsluCounter, 8500 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4775 SdHoareTripleChecker+Valid, 12827 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:11,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4775 Valid, 12827 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.795940170940171) internal successors, (5043), 2812 states have internal predecessors, (5043), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5144 transitions. [2023-12-16 07:34:11,495 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5144 transitions. Word has length 172 [2023-12-16 07:34:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:11,496 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5144 transitions. [2023-12-16 07:34:11,496 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, (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) [2023-12-16 07:34:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5144 transitions. [2023-12-16 07:34:11,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:11,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:11,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:11,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:11,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:11,703 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:11,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1556017070, now seen corresponding path program 1 times [2023-12-16 07:34:11,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:11,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187328251] [2023-12-16 07:34:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:11,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:11,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:11,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:11,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:34:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:11,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:11,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:11,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:11,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:11,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187328251] [2023-12-16 07:34:11,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187328251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:11,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:11,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:11,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913385831] [2023-12-16 07:34:11,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:11,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:11,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:11,909 INFO L87 Difference]: Start difference. First operand 2874 states and 5144 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, (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) [2023-12-16 07:34:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:12,378 INFO L93 Difference]: Finished difference Result 3608 states and 6304 transitions. [2023-12-16 07:34:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:12,379 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, (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 172 [2023-12-16 07:34:12,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:12,384 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:12,384 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:12,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:12,386 INFO L413 NwaCegarLoop]: 4324 mSDtfsCounter, 4748 mSDsluCounter, 8496 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4769 SdHoareTripleChecker+Valid, 12820 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:12,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4769 Valid, 12820 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:12,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:12,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.7934472934472934) internal successors, (5036), 2812 states have internal predecessors, (5036), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:12,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5137 transitions. [2023-12-16 07:34:12,443 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5137 transitions. Word has length 172 [2023-12-16 07:34:12,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:12,443 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5137 transitions. [2023-12-16 07:34:12,443 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, (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) [2023-12-16 07:34:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5137 transitions. [2023-12-16 07:34:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:12,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:12,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:12,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:12,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:12,651 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:12,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1052466090, now seen corresponding path program 1 times [2023-12-16 07:34:12,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:12,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417348168] [2023-12-16 07:34:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:12,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:12,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:12,652 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:12,668 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 (13)] Waiting until timeout for monitored process [2023-12-16 07:34:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:12,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:12,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:12,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:12,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:12,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417348168] [2023-12-16 07:34:12,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417348168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:12,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945515567] [2023-12-16 07:34:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:12,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:12,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:12,858 INFO L87 Difference]: Start difference. First operand 2874 states and 5137 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, (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) [2023-12-16 07:34:13,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:13,378 INFO L93 Difference]: Finished difference Result 3608 states and 6290 transitions. [2023-12-16 07:34:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:13,379 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, (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 172 [2023-12-16 07:34:13,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:13,383 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:13,383 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:13,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:13,388 INFO L413 NwaCegarLoop]: 4321 mSDtfsCounter, 4741 mSDsluCounter, 8492 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 12813 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:13,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4762 Valid, 12813 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.790954415954416) internal successors, (5029), 2812 states have internal predecessors, (5029), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:13,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5130 transitions. [2023-12-16 07:34:13,441 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5130 transitions. Word has length 172 [2023-12-16 07:34:13,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:13,442 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5130 transitions. [2023-12-16 07:34:13,442 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, (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) [2023-12-16 07:34:13,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5130 transitions. [2023-12-16 07:34:13,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:13,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:13,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:13,451 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 (13)] Ended with exit code 0 [2023-12-16 07:34:13,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:13,649 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:13,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash 610625882, now seen corresponding path program 1 times [2023-12-16 07:34:13,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:13,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555292703] [2023-12-16 07:34:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:13,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:13,653 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:13,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:34:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:13,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:13,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:13,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:13,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:13,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555292703] [2023-12-16 07:34:13,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555292703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:13,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:13,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:13,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992725177] [2023-12-16 07:34:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:13,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:13,862 INFO L87 Difference]: Start difference. First operand 2874 states and 5130 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, (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) [2023-12-16 07:34:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:14,312 INFO L93 Difference]: Finished difference Result 3608 states and 6276 transitions. [2023-12-16 07:34:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:14,313 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, (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 172 [2023-12-16 07:34:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:14,317 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:14,317 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:14,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:14,320 INFO L413 NwaCegarLoop]: 4318 mSDtfsCounter, 4735 mSDsluCounter, 8488 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 12806 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:14,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 12806 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.7884615384615385) internal successors, (5022), 2812 states have internal predecessors, (5022), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5123 transitions. [2023-12-16 07:34:14,371 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5123 transitions. Word has length 172 [2023-12-16 07:34:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:14,371 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5123 transitions. [2023-12-16 07:34:14,372 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, (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) [2023-12-16 07:34:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5123 transitions. [2023-12-16 07:34:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:14,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:14,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:14,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 07:34:14,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:14,579 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:14,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:14,580 INFO L85 PathProgramCache]: Analyzing trace with hash 525726678, now seen corresponding path program 1 times [2023-12-16 07:34:14,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:14,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708838803] [2023-12-16 07:34:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:14,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:14,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:14,581 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:14,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:34:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:14,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:14,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:14,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:14,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708838803] [2023-12-16 07:34:14,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708838803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:14,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:14,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528222832] [2023-12-16 07:34:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:14,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:14,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:14,784 INFO L87 Difference]: Start difference. First operand 2874 states and 5123 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, (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) [2023-12-16 07:34:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:15,250 INFO L93 Difference]: Finished difference Result 3608 states and 6262 transitions. [2023-12-16 07:34:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:15,251 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, (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 172 [2023-12-16 07:34:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:15,256 INFO L225 Difference]: With dead ends: 3608 [2023-12-16 07:34:15,256 INFO L226 Difference]: Without dead ends: 2874 [2023-12-16 07:34:15,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:15,258 INFO L413 NwaCegarLoop]: 4315 mSDtfsCounter, 4729 mSDsluCounter, 8484 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4750 SdHoareTripleChecker+Valid, 12799 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:15,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4750 Valid, 12799 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-12-16 07:34:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2023-12-16 07:34:15,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.785968660968661) internal successors, (5015), 2812 states have internal predecessors, (5015), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:34:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5116 transitions. [2023-12-16 07:34:15,313 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5116 transitions. Word has length 172 [2023-12-16 07:34:15,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:15,313 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5116 transitions. [2023-12-16 07:34:15,313 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, (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) [2023-12-16 07:34:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5116 transitions. [2023-12-16 07:34:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:15,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:15,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:15,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:15,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:15,520 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:15,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:15,521 INFO L85 PathProgramCache]: Analyzing trace with hash 522987994, now seen corresponding path program 1 times [2023-12-16 07:34:15,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:15,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118527793] [2023-12-16 07:34:15,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:15,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:15,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:15,522 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:15,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:34:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:15,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:15,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:15,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:15,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118527793] [2023-12-16 07:34:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118527793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:15,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:15,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938502598] [2023-12-16 07:34:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:15,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:15,729 INFO L87 Difference]: Start difference. First operand 2874 states and 5116 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, (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) [2023-12-16 07:34:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:16,293 INFO L93 Difference]: Finished difference Result 3786 states and 6540 transitions. [2023-12-16 07:34:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:16,308 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, (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 172 [2023-12-16 07:34:16,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:16,315 INFO L225 Difference]: With dead ends: 3786 [2023-12-16 07:34:16,315 INFO L226 Difference]: Without dead ends: 3052 [2023-12-16 07:34:16,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:16,318 INFO L413 NwaCegarLoop]: 4313 mSDtfsCounter, 4846 mSDsluCounter, 8480 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4867 SdHoareTripleChecker+Valid, 12793 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:16,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4867 Valid, 12793 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2023-12-16 07:34:16,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 3052. [2023-12-16 07:34:16,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 2980 states have (on average 1.765771812080537) internal successors, (5262), 2984 states have internal predecessors, (5262), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 07:34:16,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 5367 transitions. [2023-12-16 07:34:16,486 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 5367 transitions. Word has length 172 [2023-12-16 07:34:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:16,486 INFO L495 AbstractCegarLoop]: Abstraction has 3052 states and 5367 transitions. [2023-12-16 07:34:16,487 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, (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) [2023-12-16 07:34:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 5367 transitions. [2023-12-16 07:34:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:16,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:16,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:16,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:16,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:16,694 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:16,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash 63621879, now seen corresponding path program 1 times [2023-12-16 07:34:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653862137] [2023-12-16 07:34:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:16,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:16,695 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:16,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:34:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:16,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:16,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:16,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:16,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653862137] [2023-12-16 07:34:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653862137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221802019] [2023-12-16 07:34:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:16,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:16,910 INFO L87 Difference]: Start difference. First operand 3052 states and 5367 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, (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) [2023-12-16 07:34:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:17,504 INFO L93 Difference]: Finished difference Result 4142 states and 7042 transitions. [2023-12-16 07:34:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:17,505 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, (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 172 [2023-12-16 07:34:17,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:17,511 INFO L225 Difference]: With dead ends: 4142 [2023-12-16 07:34:17,511 INFO L226 Difference]: Without dead ends: 3230 [2023-12-16 07:34:17,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:17,515 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 4839 mSDsluCounter, 8476 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 12786 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:17,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4860 Valid, 12786 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2023-12-16 07:34:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3230. [2023-12-16 07:34:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3230 states, 3152 states have (on average 1.7465101522842639) internal successors, (5505), 3156 states have internal predecessors, (5505), 55 states have call successors, (55), 21 states have call predecessors, (55), 21 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 07:34:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 5614 transitions. [2023-12-16 07:34:17,590 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 5614 transitions. Word has length 172 [2023-12-16 07:34:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:17,591 INFO L495 AbstractCegarLoop]: Abstraction has 3230 states and 5614 transitions. [2023-12-16 07:34:17,591 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, (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) [2023-12-16 07:34:17,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 5614 transitions. [2023-12-16 07:34:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:17,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:17,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:17,602 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 [2023-12-16 07:34:17,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:17,800 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:17,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2130791941, now seen corresponding path program 1 times [2023-12-16 07:34:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483567] [2023-12-16 07:34:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:17,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:17,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:17,802 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:17,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 07:34:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:17,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:17,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:17,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:17,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483567] [2023-12-16 07:34:17,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:17,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:17,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:17,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030584326] [2023-12-16 07:34:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:17,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:17,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:17,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:17,997 INFO L87 Difference]: Start difference. First operand 3230 states and 5614 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, (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) [2023-12-16 07:34:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:18,555 INFO L93 Difference]: Finished difference Result 4498 states and 7536 transitions. [2023-12-16 07:34:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:18,555 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, (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 172 [2023-12-16 07:34:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:18,561 INFO L225 Difference]: With dead ends: 4498 [2023-12-16 07:34:18,561 INFO L226 Difference]: Without dead ends: 3408 [2023-12-16 07:34:18,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:18,564 INFO L413 NwaCegarLoop]: 4307 mSDtfsCounter, 4833 mSDsluCounter, 8472 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4854 SdHoareTripleChecker+Valid, 12779 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:18,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4854 Valid, 12779 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:18,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2023-12-16 07:34:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3408. [2023-12-16 07:34:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3408 states, 3324 states have (on average 1.7280385078219014) internal successors, (5744), 3328 states have internal predecessors, (5744), 57 states have call successors, (57), 25 states have call predecessors, (57), 25 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:34:18,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 5857 transitions. [2023-12-16 07:34:18,634 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 5857 transitions. Word has length 172 [2023-12-16 07:34:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:18,634 INFO L495 AbstractCegarLoop]: Abstraction has 3408 states and 5857 transitions. [2023-12-16 07:34:18,634 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, (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) [2023-12-16 07:34:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 5857 transitions. [2023-12-16 07:34:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:18,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:18,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:18,649 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:18,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:18,841 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:18,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 122608790, now seen corresponding path program 1 times [2023-12-16 07:34:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606919392] [2023-12-16 07:34:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:18,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:18,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:34:18,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:34:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:18,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:18,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:19,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:19,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:19,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606919392] [2023-12-16 07:34:19,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606919392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:19,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:19,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249872167] [2023-12-16 07:34:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:19,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:19,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:19,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:19,041 INFO L87 Difference]: Start difference. First operand 3408 states and 5857 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, (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) [2023-12-16 07:34:19,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:19,591 INFO L93 Difference]: Finished difference Result 4854 states and 8022 transitions. [2023-12-16 07:34:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:19,591 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, (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 172 [2023-12-16 07:34:19,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:19,596 INFO L225 Difference]: With dead ends: 4854 [2023-12-16 07:34:19,596 INFO L226 Difference]: Without dead ends: 3586 [2023-12-16 07:34:19,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:19,600 INFO L413 NwaCegarLoop]: 4304 mSDtfsCounter, 4826 mSDsluCounter, 8468 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 12772 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:19,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4847 Valid, 12772 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2023-12-16 07:34:19,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3586. [2023-12-16 07:34:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3496 states have (on average 1.7102402745995424) internal successors, (5979), 3500 states have internal predecessors, (5979), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 07:34:19,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 6096 transitions. [2023-12-16 07:34:19,766 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 6096 transitions. Word has length 172 [2023-12-16 07:34:19,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:19,766 INFO L495 AbstractCegarLoop]: Abstraction has 3586 states and 6096 transitions. [2023-12-16 07:34:19,767 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, (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) [2023-12-16 07:34:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 6096 transitions. [2023-12-16 07:34:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:19,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:19,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:19,775 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 [2023-12-16 07:34:19,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:19,974 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:19,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:19,974 INFO L85 PathProgramCache]: Analyzing trace with hash -107308261, now seen corresponding path program 1 times [2023-12-16 07:34:19,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:19,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675475865] [2023-12-16 07:34:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:19,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:19,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:19,976 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) [2023-12-16 07:34:20,000 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 [2023-12-16 07:34:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:20,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:20,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:20,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:20,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:20,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675475865] [2023-12-16 07:34:20,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675475865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:20,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:20,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902013777] [2023-12-16 07:34:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:20,212 INFO L87 Difference]: Start difference. First operand 3586 states and 6096 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, (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) [2023-12-16 07:34:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:20,847 INFO L93 Difference]: Finished difference Result 5210 states and 8500 transitions. [2023-12-16 07:34:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:20,847 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, (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 172 [2023-12-16 07:34:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:20,853 INFO L225 Difference]: With dead ends: 5210 [2023-12-16 07:34:20,853 INFO L226 Difference]: Without dead ends: 3764 [2023-12-16 07:34:20,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:20,858 INFO L413 NwaCegarLoop]: 4301 mSDtfsCounter, 4818 mSDsluCounter, 8464 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 12765 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:20,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 12765 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2023-12-16 07:34:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3764. [2023-12-16 07:34:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3764 states, 3668 states have (on average 1.693020719738277) internal successors, (6210), 3672 states have internal predecessors, (6210), 61 states have call successors, (61), 33 states have call predecessors, (61), 33 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 07:34:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 6331 transitions. [2023-12-16 07:34:20,973 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 6331 transitions. Word has length 172 [2023-12-16 07:34:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:20,973 INFO L495 AbstractCegarLoop]: Abstraction has 3764 states and 6331 transitions. [2023-12-16 07:34:20,973 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, (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) [2023-12-16 07:34:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 6331 transitions. [2023-12-16 07:34:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:20,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:20,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:20,989 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:21,179 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 [2023-12-16 07:34:21,179 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:21,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:21,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1906735136, now seen corresponding path program 1 times [2023-12-16 07:34:21,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:21,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230936686] [2023-12-16 07:34:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:21,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:21,181 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) [2023-12-16 07:34:21,214 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 (21)] Waiting until timeout for monitored process [2023-12-16 07:34:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:21,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:21,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:21,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:21,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:21,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:21,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230936686] [2023-12-16 07:34:21,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230936686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:21,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:21,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:21,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273105146] [2023-12-16 07:34:21,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:21,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:21,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:21,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:21,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:21,400 INFO L87 Difference]: Start difference. First operand 3764 states and 6331 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, (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) [2023-12-16 07:34:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:22,021 INFO L93 Difference]: Finished difference Result 5566 states and 8970 transitions. [2023-12-16 07:34:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:22,022 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, (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 172 [2023-12-16 07:34:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:22,027 INFO L225 Difference]: With dead ends: 5566 [2023-12-16 07:34:22,027 INFO L226 Difference]: Without dead ends: 3942 [2023-12-16 07:34:22,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:22,030 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 4811 mSDsluCounter, 8460 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 12758 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:22,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4832 Valid, 12758 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2023-12-16 07:34:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2023-12-16 07:34:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 3840 states have (on average 1.6763020833333333) internal successors, (6437), 3844 states have internal predecessors, (6437), 63 states have call successors, (63), 37 states have call predecessors, (63), 37 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-16 07:34:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 6562 transitions. [2023-12-16 07:34:22,111 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 6562 transitions. Word has length 172 [2023-12-16 07:34:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:22,111 INFO L495 AbstractCegarLoop]: Abstraction has 3942 states and 6562 transitions. [2023-12-16 07:34:22,111 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, (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) [2023-12-16 07:34:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 6562 transitions. [2023-12-16 07:34:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:22,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:22,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:22,129 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 [2023-12-16 07:34:22,329 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 [2023-12-16 07:34:22,329 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:22,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:22,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1169535396, now seen corresponding path program 1 times [2023-12-16 07:34:22,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:22,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499453425] [2023-12-16 07:34:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:22,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:22,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:22,331 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) [2023-12-16 07:34:22,332 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 [2023-12-16 07:34:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:22,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:22,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:22,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:22,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499453425] [2023-12-16 07:34:22,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499453425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:22,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:22,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:22,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956865968] [2023-12-16 07:34:22,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:22,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:22,539 INFO L87 Difference]: Start difference. First operand 3942 states and 6562 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, (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) [2023-12-16 07:34:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:23,111 INFO L93 Difference]: Finished difference Result 5922 states and 9432 transitions. [2023-12-16 07:34:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:23,112 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, (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 172 [2023-12-16 07:34:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:23,117 INFO L225 Difference]: With dead ends: 5922 [2023-12-16 07:34:23,117 INFO L226 Difference]: Without dead ends: 4120 [2023-12-16 07:34:23,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:23,121 INFO L413 NwaCegarLoop]: 4295 mSDtfsCounter, 4804 mSDsluCounter, 8456 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 12751 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:23,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4825 Valid, 12751 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2023-12-16 07:34:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4120. [2023-12-16 07:34:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4120 states, 4012 states have (on average 1.6600199401794615) internal successors, (6660), 4016 states have internal predecessors, (6660), 65 states have call successors, (65), 41 states have call predecessors, (65), 41 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-16 07:34:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4120 states to 4120 states and 6789 transitions. [2023-12-16 07:34:23,270 INFO L78 Accepts]: Start accepts. Automaton has 4120 states and 6789 transitions. Word has length 172 [2023-12-16 07:34:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:23,270 INFO L495 AbstractCegarLoop]: Abstraction has 4120 states and 6789 transitions. [2023-12-16 07:34:23,270 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, (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) [2023-12-16 07:34:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4120 states and 6789 transitions. [2023-12-16 07:34:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:23,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:23,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:23,278 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 [2023-12-16 07:34:23,476 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 [2023-12-16 07:34:23,476 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:23,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:23,477 INFO L85 PathProgramCache]: Analyzing trace with hash 917780833, now seen corresponding path program 1 times [2023-12-16 07:34:23,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939882708] [2023-12-16 07:34:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:23,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:23,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:23,478 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) [2023-12-16 07:34:23,504 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 [2023-12-16 07:34:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:23,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:23,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:23,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:23,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:23,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939882708] [2023-12-16 07:34:23,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939882708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:23,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:23,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750288541] [2023-12-16 07:34:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:23,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:23,672 INFO L87 Difference]: Start difference. First operand 4120 states and 6789 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, (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) [2023-12-16 07:34:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:24,285 INFO L93 Difference]: Finished difference Result 6278 states and 9886 transitions. [2023-12-16 07:34:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:24,286 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, (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 172 [2023-12-16 07:34:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:24,291 INFO L225 Difference]: With dead ends: 6278 [2023-12-16 07:34:24,291 INFO L226 Difference]: Without dead ends: 4298 [2023-12-16 07:34:24,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:24,296 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 4797 mSDsluCounter, 8452 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 12744 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:24,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4818 Valid, 12744 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2023-12-16 07:34:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4298. [2023-12-16 07:34:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4184 states have (on average 1.6441204588910134) internal successors, (6879), 4188 states have internal predecessors, (6879), 67 states have call successors, (67), 45 states have call predecessors, (67), 45 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 07:34:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 7012 transitions. [2023-12-16 07:34:24,392 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 7012 transitions. Word has length 172 [2023-12-16 07:34:24,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:24,393 INFO L495 AbstractCegarLoop]: Abstraction has 4298 states and 7012 transitions. [2023-12-16 07:34:24,393 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, (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) [2023-12-16 07:34:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 7012 transitions. [2023-12-16 07:34:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:24,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:24,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:24,401 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 [2023-12-16 07:34:24,599 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 [2023-12-16 07:34:24,599 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:24,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:24,599 INFO L85 PathProgramCache]: Analyzing trace with hash 333009183, now seen corresponding path program 1 times [2023-12-16 07:34:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:24,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749634521] [2023-12-16 07:34:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:24,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:24,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:24,601 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) [2023-12-16 07:34:24,620 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 [2023-12-16 07:34:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:24,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:24,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:24,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:24,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:24,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749634521] [2023-12-16 07:34:24,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749634521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:24,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:24,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:24,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328563640] [2023-12-16 07:34:24,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:24,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:24,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:24,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:24,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:24,812 INFO L87 Difference]: Start difference. First operand 4298 states and 7012 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, (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) [2023-12-16 07:34:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:25,398 INFO L93 Difference]: Finished difference Result 6634 states and 10332 transitions. [2023-12-16 07:34:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:25,398 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, (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 172 [2023-12-16 07:34:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:25,403 INFO L225 Difference]: With dead ends: 6634 [2023-12-16 07:34:25,404 INFO L226 Difference]: Without dead ends: 4476 [2023-12-16 07:34:25,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:25,407 INFO L413 NwaCegarLoop]: 4289 mSDtfsCounter, 4790 mSDsluCounter, 8448 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 12737 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:25,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4811 Valid, 12737 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4476 states. [2023-12-16 07:34:25,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4476 to 4476. [2023-12-16 07:34:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4356 states have (on average 1.6285583103764922) internal successors, (7094), 4360 states have internal predecessors, (7094), 69 states have call successors, (69), 49 states have call predecessors, (69), 49 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-16 07:34:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 7231 transitions. [2023-12-16 07:34:25,505 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 7231 transitions. Word has length 172 [2023-12-16 07:34:25,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:25,505 INFO L495 AbstractCegarLoop]: Abstraction has 4476 states and 7231 transitions. [2023-12-16 07:34:25,505 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, (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) [2023-12-16 07:34:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 7231 transitions. [2023-12-16 07:34:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:25,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:25,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:25,511 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 (24)] Ended with exit code 0 [2023-12-16 07:34:25,710 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 [2023-12-16 07:34:25,710 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:25,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:25,711 INFO L85 PathProgramCache]: Analyzing trace with hash 225053284, now seen corresponding path program 1 times [2023-12-16 07:34:25,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:25,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800990216] [2023-12-16 07:34:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:25,712 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) [2023-12-16 07:34:25,737 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 (25)] Waiting until timeout for monitored process [2023-12-16 07:34:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:25,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:25,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:25,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:25,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:25,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800990216] [2023-12-16 07:34:25,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800990216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:25,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:25,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:25,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741317482] [2023-12-16 07:34:25,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:25,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:25,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:25,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:25,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:25,906 INFO L87 Difference]: Start difference. First operand 4476 states and 7231 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, (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) [2023-12-16 07:34:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:26,549 INFO L93 Difference]: Finished difference Result 6990 states and 10770 transitions. [2023-12-16 07:34:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:26,550 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, (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 172 [2023-12-16 07:34:26,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:26,554 INFO L225 Difference]: With dead ends: 6990 [2023-12-16 07:34:26,555 INFO L226 Difference]: Without dead ends: 4654 [2023-12-16 07:34:26,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:26,558 INFO L413 NwaCegarLoop]: 4286 mSDtfsCounter, 4783 mSDsluCounter, 8444 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4804 SdHoareTripleChecker+Valid, 12730 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:26,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4804 Valid, 12730 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2023-12-16 07:34:26,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4654. [2023-12-16 07:34:26,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4654 states, 4528 states have (on average 1.6132950530035335) internal successors, (7305), 4532 states have internal predecessors, (7305), 71 states have call successors, (71), 53 states have call predecessors, (71), 53 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 07:34:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 7446 transitions. [2023-12-16 07:34:26,662 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 7446 transitions. Word has length 172 [2023-12-16 07:34:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:26,662 INFO L495 AbstractCegarLoop]: Abstraction has 4654 states and 7446 transitions. [2023-12-16 07:34:26,662 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, (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) [2023-12-16 07:34:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 7446 transitions. [2023-12-16 07:34:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:26,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:26,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:26,671 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 [2023-12-16 07:34:26,869 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 [2023-12-16 07:34:26,869 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:26,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:26,870 INFO L85 PathProgramCache]: Analyzing trace with hash 14249696, now seen corresponding path program 1 times [2023-12-16 07:34:26,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:26,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120540622] [2023-12-16 07:34:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:26,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:26,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:26,871 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) [2023-12-16 07:34:26,872 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 [2023-12-16 07:34:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:27,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:27,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:27,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:27,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120540622] [2023-12-16 07:34:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120540622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:27,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:27,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371800554] [2023-12-16 07:34:27,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:27,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:27,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:27,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:27,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:27,068 INFO L87 Difference]: Start difference. First operand 4654 states and 7446 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, (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) [2023-12-16 07:34:27,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:27,646 INFO L93 Difference]: Finished difference Result 7346 states and 11200 transitions. [2023-12-16 07:34:27,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:27,647 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, (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 172 [2023-12-16 07:34:27,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:27,652 INFO L225 Difference]: With dead ends: 7346 [2023-12-16 07:34:27,652 INFO L226 Difference]: Without dead ends: 4832 [2023-12-16 07:34:27,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:27,656 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4776 mSDsluCounter, 8440 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4797 SdHoareTripleChecker+Valid, 12723 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:27,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4797 Valid, 12723 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:27,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2023-12-16 07:34:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2023-12-16 07:34:27,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 4700 states have (on average 1.5982978723404255) internal successors, (7512), 4704 states have internal predecessors, (7512), 73 states have call successors, (73), 57 states have call predecessors, (73), 57 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:34:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7657 transitions. [2023-12-16 07:34:27,765 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7657 transitions. Word has length 172 [2023-12-16 07:34:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:27,765 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 7657 transitions. [2023-12-16 07:34:27,765 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, (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) [2023-12-16 07:34:27,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7657 transitions. [2023-12-16 07:34:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:27,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:27,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:27,771 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 (26)] Ended with exit code 0 [2023-12-16 07:34:27,971 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 [2023-12-16 07:34:27,972 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:27,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash 307283557, now seen corresponding path program 1 times [2023-12-16 07:34:27,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:27,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451696397] [2023-12-16 07:34:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:27,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:27,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:27,973 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) [2023-12-16 07:34:27,974 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 [2023-12-16 07:34:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:28,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:28,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:28,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:28,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:28,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451696397] [2023-12-16 07:34:28,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451696397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:28,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:28,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:28,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737005706] [2023-12-16 07:34:28,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:28,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:28,171 INFO L87 Difference]: Start difference. First operand 4832 states and 7657 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, (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) [2023-12-16 07:34:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:28,748 INFO L93 Difference]: Finished difference Result 7702 states and 11622 transitions. [2023-12-16 07:34:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:28,749 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, (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 172 [2023-12-16 07:34:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:28,755 INFO L225 Difference]: With dead ends: 7702 [2023-12-16 07:34:28,755 INFO L226 Difference]: Without dead ends: 5010 [2023-12-16 07:34:28,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:28,760 INFO L413 NwaCegarLoop]: 4280 mSDtfsCounter, 4768 mSDsluCounter, 8436 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 12716 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:28,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4789 Valid, 12716 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:28,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2023-12-16 07:34:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 5010. [2023-12-16 07:34:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 4872 states have (on average 1.5835385878489328) internal successors, (7715), 4876 states have internal predecessors, (7715), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 7864 transitions. [2023-12-16 07:34:28,937 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 7864 transitions. Word has length 172 [2023-12-16 07:34:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:28,937 INFO L495 AbstractCegarLoop]: Abstraction has 5010 states and 7864 transitions. [2023-12-16 07:34:28,937 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, (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) [2023-12-16 07:34:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 7864 transitions. [2023-12-16 07:34:28,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:28,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:28,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:28,943 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 (27)] Ended with exit code 0 [2023-12-16 07:34:29,139 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 [2023-12-16 07:34:29,139 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:29,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -519826583, now seen corresponding path program 1 times [2023-12-16 07:34:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:29,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136983928] [2023-12-16 07:34:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:29,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:29,141 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) [2023-12-16 07:34:29,142 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 [2023-12-16 07:34:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:29,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:29,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:29,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:29,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:29,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136983928] [2023-12-16 07:34:29,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136983928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:29,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:29,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462945178] [2023-12-16 07:34:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:29,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:29,295 INFO L87 Difference]: Start difference. First operand 5010 states and 7864 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:29,502 INFO L93 Difference]: Finished difference Result 8043 states and 12015 transitions. [2023-12-16 07:34:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:29,502 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:29,510 INFO L225 Difference]: With dead ends: 8043 [2023-12-16 07:34:29,510 INFO L226 Difference]: Without dead ends: 5174 [2023-12-16 07:34:29,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:29,519 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 119 mSDsluCounter, 8892 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 13346 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 [2023-12-16 07:34:29,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 13346 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:29,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5174 states. [2023-12-16 07:34:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5174 to 5014. [2023-12-16 07:34:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 4876 states have (on average 1.578137817883511) internal successors, (7695), 4880 states have internal predecessors, (7695), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:29,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7844 transitions. [2023-12-16 07:34:29,642 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7844 transitions. Word has length 172 [2023-12-16 07:34:29,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:29,642 INFO L495 AbstractCegarLoop]: Abstraction has 5014 states and 7844 transitions. [2023-12-16 07:34:29,642 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:29,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7844 transitions. [2023-12-16 07:34:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:29,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:29,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:29,648 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 (28)] Ended with exit code 0 [2023-12-16 07:34:29,848 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 [2023-12-16 07:34:29,848 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:29,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1409105643, now seen corresponding path program 1 times [2023-12-16 07:34:29,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:29,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374386381] [2023-12-16 07:34:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:29,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:29,850 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) [2023-12-16 07:34:29,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 07:34:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:29,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:29,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:29,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:29,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:29,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374386381] [2023-12-16 07:34:29,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374386381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:29,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:29,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81924105] [2023-12-16 07:34:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:29,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:29,996 INFO L87 Difference]: Start difference. First operand 5014 states and 7844 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:30,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:30,197 INFO L93 Difference]: Finished difference Result 8039 states and 11959 transitions. [2023-12-16 07:34:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:30,197 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:30,205 INFO L225 Difference]: With dead ends: 8039 [2023-12-16 07:34:30,205 INFO L226 Difference]: Without dead ends: 5166 [2023-12-16 07:34:30,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:30,210 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 110 mSDsluCounter, 8893 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 13347 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 [2023-12-16 07:34:30,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 13347 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2023-12-16 07:34:30,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5018. [2023-12-16 07:34:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 4880 states have (on average 1.5727459016393444) internal successors, (7675), 4884 states have internal predecessors, (7675), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7824 transitions. [2023-12-16 07:34:30,331 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7824 transitions. Word has length 172 [2023-12-16 07:34:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:30,331 INFO L495 AbstractCegarLoop]: Abstraction has 5018 states and 7824 transitions. [2023-12-16 07:34:30,331 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7824 transitions. [2023-12-16 07:34:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:30,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:30,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:30,336 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 (29)] Ended with exit code 0 [2023-12-16 07:34:30,532 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 [2023-12-16 07:34:30,533 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:30,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash -722245079, now seen corresponding path program 1 times [2023-12-16 07:34:30,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:30,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695832354] [2023-12-16 07:34:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:30,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:30,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:30,535 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) [2023-12-16 07:34:30,536 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 [2023-12-16 07:34:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:30,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:30,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:30,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:30,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695832354] [2023-12-16 07:34:30,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695832354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:30,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:30,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901431709] [2023-12-16 07:34:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:30,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:30,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:30,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:30,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:30,689 INFO L87 Difference]: Start difference. First operand 5018 states and 7824 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:30,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:30,963 INFO L93 Difference]: Finished difference Result 8035 states and 11903 transitions. [2023-12-16 07:34:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:30,963 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:30,970 INFO L225 Difference]: With dead ends: 8035 [2023-12-16 07:34:30,971 INFO L226 Difference]: Without dead ends: 5158 [2023-12-16 07:34:30,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:30,975 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 101 mSDsluCounter, 8894 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 13348 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 [2023-12-16 07:34:30,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 13348 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5158 states. [2023-12-16 07:34:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5158 to 5022. [2023-12-16 07:34:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 4884 states have (on average 1.5673628173628174) internal successors, (7655), 4888 states have internal predecessors, (7655), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 7804 transitions. [2023-12-16 07:34:31,094 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 7804 transitions. Word has length 172 [2023-12-16 07:34:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:31,094 INFO L495 AbstractCegarLoop]: Abstraction has 5022 states and 7804 transitions. [2023-12-16 07:34:31,095 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 7804 transitions. [2023-12-16 07:34:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:31,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:31,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:31,108 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 (30)] Ended with exit code 0 [2023-12-16 07:34:31,300 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 [2023-12-16 07:34:31,301 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:31,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash -603803605, now seen corresponding path program 1 times [2023-12-16 07:34:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808357576] [2023-12-16 07:34:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:31,302 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) [2023-12-16 07:34:31,303 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 [2023-12-16 07:34:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:31,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:31,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:31,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:31,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808357576] [2023-12-16 07:34:31,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808357576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:31,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:31,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821024908] [2023-12-16 07:34:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:31,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:31,444 INFO L87 Difference]: Start difference. First operand 5022 states and 7804 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:31,649 INFO L93 Difference]: Finished difference Result 8031 states and 11847 transitions. [2023-12-16 07:34:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:31,650 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:31,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:31,656 INFO L225 Difference]: With dead ends: 8031 [2023-12-16 07:34:31,657 INFO L226 Difference]: Without dead ends: 5150 [2023-12-16 07:34:31,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:31,661 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 92 mSDsluCounter, 8895 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 13349 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 [2023-12-16 07:34:31,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 13349 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5150 states. [2023-12-16 07:34:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5150 to 5026. [2023-12-16 07:34:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 4888 states have (on average 1.5619885433715222) internal successors, (7635), 4892 states have internal predecessors, (7635), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:31,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 7784 transitions. [2023-12-16 07:34:31,782 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 7784 transitions. Word has length 172 [2023-12-16 07:34:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:31,782 INFO L495 AbstractCegarLoop]: Abstraction has 5026 states and 7784 transitions. [2023-12-16 07:34:31,782 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 7784 transitions. [2023-12-16 07:34:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:31,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:31,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:31,788 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 (31)] Ended with exit code 0 [2023-12-16 07:34:31,985 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 [2023-12-16 07:34:31,985 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:31,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1293693161, now seen corresponding path program 1 times [2023-12-16 07:34:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:31,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84287463] [2023-12-16 07:34:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:31,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:31,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:31,987 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) [2023-12-16 07:34:31,988 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 [2023-12-16 07:34:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:32,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:32,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:32,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:32,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84287463] [2023-12-16 07:34:32,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84287463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:32,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:32,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:32,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976738967] [2023-12-16 07:34:32,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:32,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:32,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:32,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:32,132 INFO L87 Difference]: Start difference. First operand 5026 states and 7784 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:32,319 INFO L93 Difference]: Finished difference Result 8015 states and 11773 transitions. [2023-12-16 07:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:32,319 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:32,326 INFO L225 Difference]: With dead ends: 8015 [2023-12-16 07:34:32,326 INFO L226 Difference]: Without dead ends: 5130 [2023-12-16 07:34:32,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:32,329 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 74 mSDsluCounter, 8896 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13350 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 [2023-12-16 07:34:32,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13350 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5130 states. [2023-12-16 07:34:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5130 to 5030. [2023-12-16 07:34:32,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 4892 states have (on average 1.5566230580539657) internal successors, (7615), 4896 states have internal predecessors, (7615), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7764 transitions. [2023-12-16 07:34:32,499 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7764 transitions. Word has length 172 [2023-12-16 07:34:32,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:32,500 INFO L495 AbstractCegarLoop]: Abstraction has 5030 states and 7764 transitions. [2023-12-16 07:34:32,500 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7764 transitions. [2023-12-16 07:34:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:32,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:32,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:32,518 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 [2023-12-16 07:34:32,706 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 [2023-12-16 07:34:32,706 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:32,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1124210905, now seen corresponding path program 1 times [2023-12-16 07:34:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285327697] [2023-12-16 07:34:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:32,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:32,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:32,708 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) [2023-12-16 07:34:32,714 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 [2023-12-16 07:34:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:32,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:32,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:32,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:32,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:32,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285327697] [2023-12-16 07:34:32,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285327697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:32,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:32,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:32,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72025868] [2023-12-16 07:34:32,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:32,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:32,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:32,847 INFO L87 Difference]: Start difference. First operand 5030 states and 7764 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:33,031 INFO L93 Difference]: Finished difference Result 8011 states and 11717 transitions. [2023-12-16 07:34:33,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:33,031 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:33,038 INFO L225 Difference]: With dead ends: 8011 [2023-12-16 07:34:33,038 INFO L226 Difference]: Without dead ends: 5122 [2023-12-16 07:34:33,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:33,042 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 65 mSDsluCounter, 8897 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 13351 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 [2023-12-16 07:34:33,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 13351 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5122 states. [2023-12-16 07:34:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5122 to 5034. [2023-12-16 07:34:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 4896 states have (on average 1.551266339869281) internal successors, (7595), 4900 states have internal predecessors, (7595), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 7744 transitions. [2023-12-16 07:34:33,156 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 7744 transitions. Word has length 172 [2023-12-16 07:34:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:33,156 INFO L495 AbstractCegarLoop]: Abstraction has 5034 states and 7744 transitions. [2023-12-16 07:34:33,156 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 7744 transitions. [2023-12-16 07:34:33,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:33,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:33,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:33,169 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 (33)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:33,362 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 [2023-12-16 07:34:33,362 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:33,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 752271913, now seen corresponding path program 1 times [2023-12-16 07:34:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:33,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326751092] [2023-12-16 07:34:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:33,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:33,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:33,364 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) [2023-12-16 07:34:33,365 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 [2023-12-16 07:34:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:33,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:33,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:33,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:33,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:33,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:33,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326751092] [2023-12-16 07:34:33,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326751092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:33,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:33,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:33,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951326377] [2023-12-16 07:34:33,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:33,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:33,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:33,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:33,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:33,505 INFO L87 Difference]: Start difference. First operand 5034 states and 7744 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:33,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:33,718 INFO L93 Difference]: Finished difference Result 8007 states and 11661 transitions. [2023-12-16 07:34:33,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:33,718 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:33,724 INFO L225 Difference]: With dead ends: 8007 [2023-12-16 07:34:33,724 INFO L226 Difference]: Without dead ends: 5114 [2023-12-16 07:34:33,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:33,729 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 56 mSDsluCounter, 8898 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 13352 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 [2023-12-16 07:34:33,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 13352 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2023-12-16 07:34:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 5038. [2023-12-16 07:34:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5038 states, 4900 states have (on average 1.5459183673469388) internal successors, (7575), 4904 states have internal predecessors, (7575), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5038 states to 5038 states and 7724 transitions. [2023-12-16 07:34:33,845 INFO L78 Accepts]: Start accepts. Automaton has 5038 states and 7724 transitions. Word has length 172 [2023-12-16 07:34:33,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:33,845 INFO L495 AbstractCegarLoop]: Abstraction has 5038 states and 7724 transitions. [2023-12-16 07:34:33,845 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:33,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5038 states and 7724 transitions. [2023-12-16 07:34:33,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:33,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:33,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:33,851 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 (34)] Ended with exit code 0 [2023-12-16 07:34:34,047 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 [2023-12-16 07:34:34,047 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:34,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:34,047 INFO L85 PathProgramCache]: Analyzing trace with hash -390230553, now seen corresponding path program 1 times [2023-12-16 07:34:34,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:34,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909096655] [2023-12-16 07:34:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:34,048 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 [2023-12-16 07:34:34,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:34,049 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) [2023-12-16 07:34:34,049 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 [2023-12-16 07:34:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:34,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:34,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:34,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:34,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:34,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909096655] [2023-12-16 07:34:34,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909096655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:34,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:34,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:34,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151053514] [2023-12-16 07:34:34,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:34,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:34,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:34,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:34,196 INFO L87 Difference]: Start difference. First operand 5038 states and 7724 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:34,440 INFO L93 Difference]: Finished difference Result 8003 states and 11605 transitions. [2023-12-16 07:34:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:34,440 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:34,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:34,447 INFO L225 Difference]: With dead ends: 8003 [2023-12-16 07:34:34,447 INFO L226 Difference]: Without dead ends: 5106 [2023-12-16 07:34:34,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:34,450 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 47 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 13353 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 [2023-12-16 07:34:34,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 13353 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:34,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5106 states. [2023-12-16 07:34:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5106 to 5042. [2023-12-16 07:34:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5042 states, 4904 states have (on average 1.54057911908646) internal successors, (7555), 4908 states have internal predecessors, (7555), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 7704 transitions. [2023-12-16 07:34:34,566 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 7704 transitions. Word has length 172 [2023-12-16 07:34:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:34,567 INFO L495 AbstractCegarLoop]: Abstraction has 5042 states and 7704 transitions. [2023-12-16 07:34:34,567 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 7704 transitions. [2023-12-16 07:34:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:34,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:34,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:34,572 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 (35)] Ended with exit code 0 [2023-12-16 07:34:34,771 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 [2023-12-16 07:34:34,771 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:34,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1343873897, now seen corresponding path program 1 times [2023-12-16 07:34:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646936649] [2023-12-16 07:34:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:34,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:34,773 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) [2023-12-16 07:34:34,774 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 [2023-12-16 07:34:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:34,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:34,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:34,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:34,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:34,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646936649] [2023-12-16 07:34:34,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646936649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:34,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:34,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:34,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395956177] [2023-12-16 07:34:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:34,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:34,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:34,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:34,917 INFO L87 Difference]: Start difference. First operand 5042 states and 7704 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:35,122 INFO L93 Difference]: Finished difference Result 7999 states and 11549 transitions. [2023-12-16 07:34:35,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:35,123 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:35,129 INFO L225 Difference]: With dead ends: 7999 [2023-12-16 07:34:35,129 INFO L226 Difference]: Without dead ends: 5098 [2023-12-16 07:34:35,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:35,133 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 38 mSDsluCounter, 8900 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13354 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 [2023-12-16 07:34:35,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13354 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5098 states. [2023-12-16 07:34:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5098 to 5046. [2023-12-16 07:34:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5046 states, 4908 states have (on average 1.5352485737571313) internal successors, (7535), 4912 states have internal predecessors, (7535), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 7684 transitions. [2023-12-16 07:34:35,249 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 7684 transitions. Word has length 172 [2023-12-16 07:34:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:35,249 INFO L495 AbstractCegarLoop]: Abstraction has 5046 states and 7684 transitions. [2023-12-16 07:34:35,249 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 7684 transitions. [2023-12-16 07:34:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:35,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:35,250 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, 1] [2023-12-16 07:34:35,254 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 (36)] Ended with exit code 0 [2023-12-16 07:34:35,454 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 [2023-12-16 07:34:35,455 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:35,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:35,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1042635609, now seen corresponding path program 1 times [2023-12-16 07:34:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:35,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289591082] [2023-12-16 07:34:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:35,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:35,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:35,457 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) [2023-12-16 07:34:35,470 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 (37)] Waiting until timeout for monitored process [2023-12-16 07:34:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:35,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:35,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:35,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:35,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289591082] [2023-12-16 07:34:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289591082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103039755] [2023-12-16 07:34:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:35,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:35,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:35,594 INFO L87 Difference]: Start difference. First operand 5046 states and 7684 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:35,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:35,792 INFO L93 Difference]: Finished difference Result 7995 states and 11493 transitions. [2023-12-16 07:34:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:35,793 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:35,799 INFO L225 Difference]: With dead ends: 7995 [2023-12-16 07:34:35,800 INFO L226 Difference]: Without dead ends: 5090 [2023-12-16 07:34:35,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:35,804 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 29 mSDsluCounter, 8901 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13355 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 [2023-12-16 07:34:35,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13355 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5090 states. [2023-12-16 07:34:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5090 to 5050. [2023-12-16 07:34:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5050 states, 4912 states have (on average 1.5299267100977199) internal successors, (7515), 4916 states have internal predecessors, (7515), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 7664 transitions. [2023-12-16 07:34:35,980 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 7664 transitions. Word has length 172 [2023-12-16 07:34:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:35,980 INFO L495 AbstractCegarLoop]: Abstraction has 5050 states and 7664 transitions. [2023-12-16 07:34:35,980 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 7664 transitions. [2023-12-16 07:34:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:35,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:35,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:35,985 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 (37)] Ended with exit code 0 [2023-12-16 07:34:36,181 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 [2023-12-16 07:34:36,182 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:36,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1566151849, now seen corresponding path program 1 times [2023-12-16 07:34:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:36,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572749103] [2023-12-16 07:34:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:36,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:36,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:36,183 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) [2023-12-16 07:34:36,184 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 [2023-12-16 07:34:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:36,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:36,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:36,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:36,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:36,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572749103] [2023-12-16 07:34:36,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572749103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:36,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:36,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727945127] [2023-12-16 07:34:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:36,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:36,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:36,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:36,318 INFO L87 Difference]: Start difference. First operand 5050 states and 7664 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:36,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:36,503 INFO L93 Difference]: Finished difference Result 7991 states and 11437 transitions. [2023-12-16 07:34:36,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:36,512 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:36,519 INFO L225 Difference]: With dead ends: 7991 [2023-12-16 07:34:36,519 INFO L226 Difference]: Without dead ends: 5082 [2023-12-16 07:34:36,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:36,523 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 20 mSDsluCounter, 8902 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13356 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 [2023-12-16 07:34:36,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13356 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5082 states. [2023-12-16 07:34:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5082 to 5054. [2023-12-16 07:34:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5054 states, 4916 states have (on average 1.5246135069161921) internal successors, (7495), 4920 states have internal predecessors, (7495), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-16 07:34:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5054 states to 5054 states and 7644 transitions. [2023-12-16 07:34:36,638 INFO L78 Accepts]: Start accepts. Automaton has 5054 states and 7644 transitions. Word has length 172 [2023-12-16 07:34:36,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:36,638 INFO L495 AbstractCegarLoop]: Abstraction has 5054 states and 7644 transitions. [2023-12-16 07:34:36,638 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5054 states and 7644 transitions. [2023-12-16 07:34:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:36,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:36,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:36,645 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 [2023-12-16 07:34:36,841 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 [2023-12-16 07:34:36,841 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:36,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1767975783, now seen corresponding path program 1 times [2023-12-16 07:34:36,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:36,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537631546] [2023-12-16 07:34:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:36,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:36,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:36,843 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) [2023-12-16 07:34:36,843 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 [2023-12-16 07:34:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:36,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:36,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:37,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:37,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:37,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537631546] [2023-12-16 07:34:37,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537631546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:37,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:37,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:34:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341531595] [2023-12-16 07:34:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:37,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:37,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:37,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:37,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:37,066 INFO L87 Difference]: Start difference. First operand 5054 states and 7644 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:37,338 INFO L93 Difference]: Finished difference Result 10669 states and 14722 transitions. [2023-12-16 07:34:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:37,338 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:37,348 INFO L225 Difference]: With dead ends: 10669 [2023-12-16 07:34:37,348 INFO L226 Difference]: Without dead ends: 7756 [2023-12-16 07:34:37,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:37,353 INFO L413 NwaCegarLoop]: 4515 mSDtfsCounter, 4376 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 4972 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 [2023-12-16 07:34:37,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 4972 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2023-12-16 07:34:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 7750. [2023-12-16 07:34:37,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7750 states, 7490 states have (on average 1.4293724966622163) internal successors, (10706), 7495 states have internal predecessors, (10706), 140 states have call successors, (140), 117 states have call predecessors, (140), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-16 07:34:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7750 states to 7750 states and 10986 transitions. [2023-12-16 07:34:37,611 INFO L78 Accepts]: Start accepts. Automaton has 7750 states and 10986 transitions. Word has length 172 [2023-12-16 07:34:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 7750 states and 10986 transitions. [2023-12-16 07:34:37,611 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 7750 states and 10986 transitions. [2023-12-16 07:34:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:37,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:37,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:37,616 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 [2023-12-16 07:34:37,813 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 [2023-12-16 07:34:37,813 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:37,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash 626328390, now seen corresponding path program 1 times [2023-12-16 07:34:37,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:37,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955464362] [2023-12-16 07:34:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:37,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:37,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:37,815 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) [2023-12-16 07:34:37,818 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 [2023-12-16 07:34:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:37,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:37,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:37,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:37,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:37,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955464362] [2023-12-16 07:34:37,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955464362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:37,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:37,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:37,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538962336] [2023-12-16 07:34:37,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:37,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:37,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:37,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:37,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:37,959 INFO L87 Difference]: Start difference. First operand 7750 states and 10986 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:38,234 INFO L93 Difference]: Finished difference Result 13619 states and 18433 transitions. [2023-12-16 07:34:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:38,235 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:38,246 INFO L225 Difference]: With dead ends: 13619 [2023-12-16 07:34:38,246 INFO L226 Difference]: Without dead ends: 8010 [2023-12-16 07:34:38,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:38,254 INFO L413 NwaCegarLoop]: 4457 mSDtfsCounter, 11 mSDsluCounter, 8908 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13365 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 [2023-12-16 07:34:38,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13365 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:38,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8010 states. [2023-12-16 07:34:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8010 to 7802. [2023-12-16 07:34:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7802 states, 7542 states have (on average 1.4232299124900556) internal successors, (10734), 7547 states have internal predecessors, (10734), 140 states have call successors, (140), 117 states have call predecessors, (140), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-16 07:34:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 11014 transitions. [2023-12-16 07:34:38,457 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 11014 transitions. Word has length 172 [2023-12-16 07:34:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:38,457 INFO L495 AbstractCegarLoop]: Abstraction has 7802 states and 11014 transitions. [2023-12-16 07:34:38,457 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:38,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 11014 transitions. [2023-12-16 07:34:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:38,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:38,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:38,499 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 (40)] Ended with exit code 0 [2023-12-16 07:34:38,658 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 [2023-12-16 07:34:38,658 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:38,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:38,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2013113800, now seen corresponding path program 1 times [2023-12-16 07:34:38,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:38,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331076943] [2023-12-16 07:34:38,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:38,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:38,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:38,660 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) [2023-12-16 07:34:38,661 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 [2023-12-16 07:34:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:38,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:34:38,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:38,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:38,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:38,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:38,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331076943] [2023-12-16 07:34:38,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331076943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:38,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:38,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:38,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593567361] [2023-12-16 07:34:38,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:38,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:38,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:38,926 INFO L87 Difference]: Start difference. First operand 7802 states and 11014 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:39,544 INFO L93 Difference]: Finished difference Result 13464 states and 18049 transitions. [2023-12-16 07:34:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:39,545 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:39,557 INFO L225 Difference]: With dead ends: 13464 [2023-12-16 07:34:39,557 INFO L226 Difference]: Without dead ends: 7802 [2023-12-16 07:34:39,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:39,565 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 4574 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 12708 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:39,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 12708 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:39,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7802 states. [2023-12-16 07:34:39,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7802 to 7802. [2023-12-16 07:34:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7802 states, 7542 states have (on average 1.4213736409440467) internal successors, (10720), 7547 states have internal predecessors, (10720), 140 states have call successors, (140), 117 states have call predecessors, (140), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-16 07:34:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 11000 transitions. [2023-12-16 07:34:39,776 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 11000 transitions. Word has length 172 [2023-12-16 07:34:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:39,776 INFO L495 AbstractCegarLoop]: Abstraction has 7802 states and 11000 transitions. [2023-12-16 07:34:39,776 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:39,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 11000 transitions. [2023-12-16 07:34:39,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:39,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:39,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:39,782 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 (41)] Ended with exit code 0 [2023-12-16 07:34:39,982 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 [2023-12-16 07:34:39,982 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:39,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash -36274042, now seen corresponding path program 1 times [2023-12-16 07:34:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799914526] [2023-12-16 07:34:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:39,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:39,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:39,985 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) [2023-12-16 07:34:39,988 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 [2023-12-16 07:34:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:40,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:34:40,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:40,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:40,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799914526] [2023-12-16 07:34:40,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799914526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:40,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:40,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:40,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085001792] [2023-12-16 07:34:40,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:40,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:40,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:40,266 INFO L87 Difference]: Start difference. First operand 7802 states and 11000 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:40,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:40,896 INFO L93 Difference]: Finished difference Result 13464 states and 18021 transitions. [2023-12-16 07:34:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:40,896 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:40,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:40,905 INFO L225 Difference]: With dead ends: 13464 [2023-12-16 07:34:40,905 INFO L226 Difference]: Without dead ends: 7802 [2023-12-16 07:34:40,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:34:40,909 INFO L413 NwaCegarLoop]: 4273 mSDtfsCounter, 4561 mSDsluCounter, 8428 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 12701 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:40,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4581 Valid, 12701 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7802 states. [2023-12-16 07:34:41,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7802 to 7802. [2023-12-16 07:34:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7802 states, 7542 states have (on average 1.4195173693980376) internal successors, (10706), 7547 states have internal predecessors, (10706), 140 states have call successors, (140), 117 states have call predecessors, (140), 118 states have return successors, (140), 138 states have call predecessors, (140), 138 states have call successors, (140) [2023-12-16 07:34:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 10986 transitions. [2023-12-16 07:34:41,122 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 10986 transitions. Word has length 172 [2023-12-16 07:34:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:41,123 INFO L495 AbstractCegarLoop]: Abstraction has 7802 states and 10986 transitions. [2023-12-16 07:34:41,123 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 10986 transitions. [2023-12-16 07:34:41,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:41,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:41,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:41,129 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 [2023-12-16 07:34:41,329 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 [2023-12-16 07:34:41,329 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:41,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash -430640828, now seen corresponding path program 1 times [2023-12-16 07:34:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414603035] [2023-12-16 07:34:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:41,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:41,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:41,331 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) [2023-12-16 07:34:41,331 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 (43)] Waiting until timeout for monitored process [2023-12-16 07:34:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:41,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:34:41,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:41,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:41,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414603035] [2023-12-16 07:34:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414603035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:41,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:41,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:41,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260582513] [2023-12-16 07:34:41,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:41,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:41,613 INFO L87 Difference]: Start difference. First operand 7802 states and 10986 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:42,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:42,350 INFO L93 Difference]: Finished difference Result 14064 states and 18812 transitions. [2023-12-16 07:34:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:34:42,351 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:42,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:42,363 INFO L225 Difference]: With dead ends: 14064 [2023-12-16 07:34:42,364 INFO L226 Difference]: Without dead ends: 8402 [2023-12-16 07:34:42,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:34:42,417 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 4720 mSDsluCounter, 8424 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 12696 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:42,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 12696 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:34:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2023-12-16 07:34:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 8160. [2023-12-16 07:34:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8160 states, 7888 states have (on average 1.4018762677484786) internal successors, (11058), 7893 states have internal predecessors, (11058), 144 states have call successors, (144), 125 states have call predecessors, (144), 126 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2023-12-16 07:34:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8160 states to 8160 states and 11346 transitions. [2023-12-16 07:34:42,639 INFO L78 Accepts]: Start accepts. Automaton has 8160 states and 11346 transitions. Word has length 172 [2023-12-16 07:34:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:42,639 INFO L495 AbstractCegarLoop]: Abstraction has 8160 states and 11346 transitions. [2023-12-16 07:34:42,639 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8160 states and 11346 transitions. [2023-12-16 07:34:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:42,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:42,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:42,645 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 (43)] Ended with exit code 0 [2023-12-16 07:34:42,845 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 [2023-12-16 07:34:42,845 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:42,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash -940113918, now seen corresponding path program 1 times [2023-12-16 07:34:42,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:42,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885370637] [2023-12-16 07:34:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:42,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:42,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:42,847 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) [2023-12-16 07:34:42,849 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 [2023-12-16 07:34:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:42,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:34:42,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:43,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:43,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:43,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885370637] [2023-12-16 07:34:43,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885370637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:43,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:43,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:43,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793379009] [2023-12-16 07:34:43,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:43,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:43,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:43,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:43,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:43,150 INFO L87 Difference]: Start difference. First operand 8160 states and 11346 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:43,847 INFO L93 Difference]: Finished difference Result 14490 states and 19116 transitions. [2023-12-16 07:34:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:34:43,847 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 07:34:43,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:43,857 INFO L225 Difference]: With dead ends: 14490 [2023-12-16 07:34:43,857 INFO L226 Difference]: Without dead ends: 8470 [2023-12-16 07:34:43,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:34:43,864 INFO L413 NwaCegarLoop]: 4269 mSDtfsCounter, 4646 mSDsluCounter, 8420 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 12689 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:43,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4666 Valid, 12689 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2023-12-16 07:34:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 8450. [2023-12-16 07:34:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8450 states, 8174 states have (on average 1.387325666748226) internal successors, (11340), 8179 states have internal predecessors, (11340), 144 states have call successors, (144), 129 states have call predecessors, (144), 130 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2023-12-16 07:34:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8450 states to 8450 states and 11628 transitions. [2023-12-16 07:34:44,133 INFO L78 Accepts]: Start accepts. Automaton has 8450 states and 11628 transitions. Word has length 172 [2023-12-16 07:34:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:44,134 INFO L495 AbstractCegarLoop]: Abstraction has 8450 states and 11628 transitions. [2023-12-16 07:34:44,134 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:34:44,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8450 states and 11628 transitions. [2023-12-16 07:34:44,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:34:44,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:44,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:34:44,140 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 (44)] Ended with exit code 0 [2023-12-16 07:34:44,339 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 [2023-12-16 07:34:44,340 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:44,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1757762368, now seen corresponding path program 1 times [2023-12-16 07:34:44,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:44,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013909255] [2023-12-16 07:34:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:44,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:44,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:44,342 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) [2023-12-16 07:34:44,346 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 [2023-12-16 07:34:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:44,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:44,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:34:44,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:44,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:44,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013909255] [2023-12-16 07:34:44,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013909255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:44,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:44,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:34:44,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277596513] [2023-12-16 07:34:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:44,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:44,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:44,614 INFO L87 Difference]: Start difference. First operand 8450 states and 11628 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:34:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:45,121 INFO L93 Difference]: Finished difference Result 20965 states and 26874 transitions. [2023-12-16 07:34:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:45,121 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 172 [2023-12-16 07:34:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:45,137 INFO L225 Difference]: With dead ends: 20965 [2023-12-16 07:34:45,137 INFO L226 Difference]: Without dead ends: 14656 [2023-12-16 07:34:45,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:45,143 INFO L413 NwaCegarLoop]: 4441 mSDtfsCounter, 4299 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4299 SdHoareTripleChecker+Valid, 4884 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 [2023-12-16 07:34:45,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4299 Valid, 4884 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:45,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14656 states. [2023-12-16 07:34:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14656 to 14652. [2023-12-16 07:34:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14652 states, 14108 states have (on average 1.3107456762120782) internal successors, (18492), 14119 states have internal predecessors, (18492), 282 states have call successors, (282), 257 states have call predecessors, (282), 260 states have return successors, (284), 276 states have call predecessors, (284), 280 states have call successors, (284) [2023-12-16 07:34:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14652 states to 14652 states and 19058 transitions. [2023-12-16 07:34:45,593 INFO L78 Accepts]: Start accepts. Automaton has 14652 states and 19058 transitions. Word has length 172 [2023-12-16 07:34:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:45,594 INFO L495 AbstractCegarLoop]: Abstraction has 14652 states and 19058 transitions. [2023-12-16 07:34:45,594 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:34:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14652 states and 19058 transitions. [2023-12-16 07:34:45,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-16 07:34:45,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:45,630 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] [2023-12-16 07:34:45,648 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 [2023-12-16 07:34:45,834 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 [2023-12-16 07:34:45,835 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:45,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1111614796, now seen corresponding path program 1 times [2023-12-16 07:34:45,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:45,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723392360] [2023-12-16 07:34:45,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:45,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:45,837 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) [2023-12-16 07:34:45,840 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 (46)] Waiting until timeout for monitored process [2023-12-16 07:34:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:46,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:34:46,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-16 07:34:46,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:46,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723392360] [2023-12-16 07:34:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723392360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:46,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:46,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714829368] [2023-12-16 07:34:46,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:46,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:46,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:46,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:46,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:46,276 INFO L87 Difference]: Start difference. First operand 14652 states and 19058 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:34:47,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:47,549 INFO L93 Difference]: Finished difference Result 39420 states and 48845 transitions. [2023-12-16 07:34:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:47,550 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 276 [2023-12-16 07:34:47,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:47,599 INFO L225 Difference]: With dead ends: 39420 [2023-12-16 07:34:47,599 INFO L226 Difference]: Without dead ends: 26910 [2023-12-16 07:34:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:47,614 INFO L413 NwaCegarLoop]: 4565 mSDtfsCounter, 4663 mSDsluCounter, 4783 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 9348 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:47,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 9348 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:34:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26910 states. [2023-12-16 07:34:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26910 to 26906. [2023-12-16 07:34:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26906 states, 25839 states have (on average 1.2617748364874801) internal successors, (32603), 25867 states have internal predecessors, (32603), 545 states have call successors, (545), 497 states have call predecessors, (545), 520 states have return successors, (591), 543 states have call predecessors, (591), 543 states have call successors, (591) [2023-12-16 07:34:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26906 states to 26906 states and 33739 transitions. [2023-12-16 07:34:48,648 INFO L78 Accepts]: Start accepts. Automaton has 26906 states and 33739 transitions. Word has length 276 [2023-12-16 07:34:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:48,648 INFO L495 AbstractCegarLoop]: Abstraction has 26906 states and 33739 transitions. [2023-12-16 07:34:48,648 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:34:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 26906 states and 33739 transitions. [2023-12-16 07:34:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-16 07:34:48,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:48,660 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] [2023-12-16 07:34:48,666 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 (46)] Ended with exit code 0 [2023-12-16 07:34:48,860 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 [2023-12-16 07:34:48,860 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:48,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash 270526390, now seen corresponding path program 1 times [2023-12-16 07:34:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:48,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089002565] [2023-12-16 07:34:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:48,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:48,862 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) [2023-12-16 07:34:48,863 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 [2023-12-16 07:34:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:49,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:49,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-16 07:34:49,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:49,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:49,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089002565] [2023-12-16 07:34:49,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089002565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:49,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:49,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223442854] [2023-12-16 07:34:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:49,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:49,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:49,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:49,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:49,037 INFO L87 Difference]: Start difference. First operand 26906 states and 33739 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:34:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:49,935 INFO L93 Difference]: Finished difference Result 51654 states and 63454 transitions. [2023-12-16 07:34:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:49,935 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 276 [2023-12-16 07:34:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:49,984 INFO L225 Difference]: With dead ends: 51654 [2023-12-16 07:34:49,984 INFO L226 Difference]: Without dead ends: 26890 [2023-12-16 07:34:50,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:50,010 INFO L413 NwaCegarLoop]: 4441 mSDtfsCounter, 525 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 8398 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 [2023-12-16 07:34:50,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 8398 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:50,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26890 states. Received shutdown request... [2023-12-16 07:34:50,530 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:34:50,536 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:34:51,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26890 to 26890. [2023-12-16 07:34:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26890 states, 25826 states have (on average 1.2614806783861225) internal successors, (32579), 25853 states have internal predecessors, (32579), 542 states have call successors, (542), 497 states have call predecessors, (542), 520 states have return successors, (588), 540 states have call predecessors, (588), 540 states have call successors, (588) [2023-12-16 07:34:51,253 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:34:51,259 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 (47)] Ended with exit code 0 [2023-12-16 07:34:51,454 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 [2023-12-16 07:34:51,455 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 07:34:51,456 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:34:51,459 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 07:34:51,460 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:34:51,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:34:51 BoogieIcfgContainer [2023-12-16 07:34:51,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:34:51,461 INFO L158 Benchmark]: Toolchain (without parser) took 61529.06ms. Allocated memory was 186.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 152.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 141.7MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2399.00ms. Allocated memory was 186.6MB in the beginning and 290.5MB in the end (delta: 103.8MB). Free memory was 151.8MB in the beginning and 158.6MB in the end (delta: -6.8MB). Peak memory consumption was 161.0MB. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 413.02ms. Allocated memory is still 290.5MB. Free memory was 158.6MB in the beginning and 155.0MB in the end (delta: 3.7MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: Boogie Preprocessor took 445.20ms. Allocated memory was 290.5MB in the beginning and 542.1MB in the end (delta: 251.7MB). Free memory was 155.0MB in the beginning and 364.2MB in the end (delta: -209.2MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: RCFGBuilder took 7832.82ms. Allocated memory was 542.1MB in the beginning and 1.3GB in the end (delta: 726.7MB). Free memory was 364.2MB in the beginning and 906.8MB in the end (delta: -542.6MB). Peak memory consumption was 427.8MB. Max. memory is 8.0GB. [2023-12-16 07:34:51,462 INFO L158 Benchmark]: TraceAbstraction took 50419.63ms. Allocated memory was 1.3GB in the beginning and 2.1GB in the end (delta: 851.4MB). Free memory was 906.3MB in the beginning and 1.5GB in the end (delta: -631.8MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-16 07:34:51,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 141.7MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2399.00ms. Allocated memory was 186.6MB in the beginning and 290.5MB in the end (delta: 103.8MB). Free memory was 151.8MB in the beginning and 158.6MB in the end (delta: -6.8MB). Peak memory consumption was 161.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 413.02ms. Allocated memory is still 290.5MB. Free memory was 158.6MB in the beginning and 155.0MB in the end (delta: 3.7MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 445.20ms. Allocated memory was 290.5MB in the beginning and 542.1MB in the end (delta: 251.7MB). Free memory was 155.0MB in the beginning and 364.2MB in the end (delta: -209.2MB). Peak memory consumption was 57.1MB. Max. memory is 8.0GB. * RCFGBuilder took 7832.82ms. Allocated memory was 542.1MB in the beginning and 1.3GB in the end (delta: 726.7MB). Free memory was 364.2MB in the beginning and 906.8MB in the end (delta: -542.6MB). Peak memory consumption was 427.8MB. Max. memory is 8.0GB. * TraceAbstraction took 50419.63ms. Allocated memory was 1.3GB in the beginning and 2.1GB in the end (delta: 851.4MB). Free memory was 906.3MB in the beginning and 1.5GB in the end (delta: -631.8MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 11133]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11133). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2502 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 50.4s, OverallIterations: 46, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150114 SdHoareTripleChecker+Valid, 14.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149525 mSDsluCounter, 563283 SdHoareTripleChecker+Invalid, 11.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 362133 mSDsCounter, 1183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19663 IncrementalHoareTripleChecker+Invalid, 20846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1183 mSolverCounterUnsat, 201150 mSDtfsCounter, 19663 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8106 GetRequests, 7960 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26906occurred in iteration=45, InterpolantAutomatonStates: 198, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 46 MinimizatonAttempts, 1533 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 8120 NumberOfCodeBlocks, 8120 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 8074 ConstructedInterpolants, 0 QuantifiedInterpolants, 12914 SizeOfPredicates, 12 NumberOfNonLiveVariables, 22952 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 46 InterpolantComputations, 46 PerfectInterpolantSequences, 166/166 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown