/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/eca-rers2012/Problem14_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 12:21:22,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 12:21:22,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 12:21:22,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 12:21:22,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 12:21:22,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 12:21:22,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 12:21:22,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 12:21:22,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 12:21:22,340 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 12:21:22,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 12:21:22,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 12:21:22,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 12:21:22,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 12:21:22,343 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 12:21:22,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 12:21:22,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 12:21:22,345 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 12:21:22,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 12:21:22,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 12:21:22,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 12:21:22,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 12:21:22,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 12:21:22,347 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 12:21:22,347 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 12:21:22,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 12:21:22,348 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 12:21:22,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 12:21:22,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 12:21:22,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 12:21:22,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 12:21:22,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 12:21:22,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 12:21:22,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 12:21:22,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:21:22,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 12:21:22,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 12:21:22,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 12:21:22,351 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 12:21:22,351 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 12:21:22,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 12:21:22,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 12:21:22,352 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 12:21:22,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 12:21:22,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 12:21:22,353 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 12:21:22,353 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 12:21:22,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 12:21:22,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 12:21:22,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 12:21:22,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 12:21:22,633 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 12:21:22,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2023-12-22 12:21:23,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 12:21:24,223 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 12:21:24,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2023-12-22 12:21:24,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9c8b746/f055a15ba5a740ea930b447935f9ec37/FLAGf5f66ee19 [2023-12-22 12:21:24,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9c8b746/f055a15ba5a740ea930b447935f9ec37 [2023-12-22 12:21:24,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 12:21:24,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 12:21:24,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 12:21:24,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 12:21:24,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 12:21:24,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5568808f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24, skipping insertion in model container [2023-12-22 12:21:24,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 12:21:24,502 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c[3423,3436] [2023-12-22 12:21:24,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:21:24,713 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 12:21:24,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c[3423,3436] [2023-12-22 12:21:24,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:21:24,864 INFO L206 MainTranslator]: Completed translation [2023-12-22 12:21:24,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24 WrapperNode [2023-12-22 12:21:24,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 12:21:24,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 12:21:24,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 12:21:24,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 12:21:24,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,962 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-22 12:21:24,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 12:21:24,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 12:21:24,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 12:21:24,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 12:21:24,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,978 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,997 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 12:21:24,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:24,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 12:21:25,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 12:21:25,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 12:21:25,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 12:21:25,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (1/1) ... [2023-12-22 12:21:25,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:21:25,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 12:21:25,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 12:21:25,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 12:21:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 12:21:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 12:21:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 12:21:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 12:21:25,178 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 12:21:25,182 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 12:21:28,218 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 12:21:28,268 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 12:21:28,268 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 12:21:28,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:21:28 BoogieIcfgContainer [2023-12-22 12:21:28,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 12:21:28,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 12:21:28,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 12:21:28,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 12:21:28,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:21:24" (1/3) ... [2023-12-22 12:21:28,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29be18a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:21:28, skipping insertion in model container [2023-12-22 12:21:28,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:21:24" (2/3) ... [2023-12-22 12:21:28,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29be18a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:21:28, skipping insertion in model container [2023-12-22 12:21:28,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:21:28" (3/3) ... [2023-12-22 12:21:28,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2023-12-22 12:21:28,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 12:21:28,300 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 12:21:28,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 12:21:28,376 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;@622b2c17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 12:21:28,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 12:21:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-22 12:21:28,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:28,394 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] [2023-12-22 12:21:28,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:28,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:28,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2115016090, now seen corresponding path program 1 times [2023-12-22 12:21:28,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:28,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767270458] [2023-12-22 12:21:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:28,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:28,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:28,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:28,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 12:21:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:28,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 12:21:28,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:21:28,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:28,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:28,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767270458] [2023-12-22 12:21:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767270458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:28,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:28,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:21:28,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155541312] [2023-12-22 12:21:28,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:28,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 12:21:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:28,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 12:21:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 12:21:28,595 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:28,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:28,654 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-22 12:21:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 12:21:28,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-12-22 12:21:28,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:28,674 INFO L225 Difference]: With dead ends: 365 [2023-12-22 12:21:28,675 INFO L226 Difference]: Without dead ends: 181 [2023-12-22 12:21:28,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 12:21:28,683 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:28,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 12:21:28,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-22 12:21:28,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-22 12:21:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-22 12:21:28,738 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 31 [2023-12-22 12:21:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:28,738 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-22 12:21:28,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-22 12:21:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-22 12:21:28,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:28,740 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] [2023-12-22 12:21:28,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 12:21:28,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:28,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:28,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:28,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1697145414, now seen corresponding path program 1 times [2023-12-22 12:21:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:28,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462957359] [2023-12-22 12:21:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:28,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:28,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:28,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:28,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 12:21:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:29,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:21:29,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:21:29,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:29,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:29,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462957359] [2023-12-22 12:21:29,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462957359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:29,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:29,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:21:29,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428220821] [2023-12-22 12:21:29,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:29,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:29,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:29,130 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:32,328 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-22 12:21:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:21:32,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-12-22 12:21:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:32,331 INFO L225 Difference]: With dead ends: 539 [2023-12-22 12:21:32,331 INFO L226 Difference]: Without dead ends: 359 [2023-12-22 12:21:32,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:32,333 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 159 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:32,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 64 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 12:21:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-22 12:21:32,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-22 12:21:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.488826815642458) internal successors, (533), 358 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-12-22 12:21:32,352 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 31 [2023-12-22 12:21:32,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:32,352 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-12-22 12:21:32,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-12-22 12:21:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-22 12:21:32,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:32,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:32,360 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 [2023-12-22 12:21:32,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:32,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:32,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1725176852, now seen corresponding path program 1 times [2023-12-22 12:21:32,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581828302] [2023-12-22 12:21:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:32,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:32,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 12:21:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:32,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:21:32,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:21:32,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:32,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:32,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581828302] [2023-12-22 12:21:32,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581828302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:21:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131666278] [2023-12-22 12:21:32,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:32,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:32,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:32,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:32,803 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:36,450 INFO L93 Difference]: Finished difference Result 1073 states and 1596 transitions. [2023-12-22 12:21:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:21:36,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-22 12:21:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:36,454 INFO L225 Difference]: With dead ends: 1073 [2023-12-22 12:21:36,454 INFO L226 Difference]: Without dead ends: 715 [2023-12-22 12:21:36,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:36,457 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:36,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 100 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-22 12:21:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-22 12:21:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-22 12:21:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-22 12:21:36,486 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 96 [2023-12-22 12:21:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:36,486 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-22 12:21:36,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-22 12:21:36,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-22 12:21:36,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:36,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:36,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 12:21:36,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:36,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:36,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash -811465360, now seen corresponding path program 1 times [2023-12-22 12:21:36,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:36,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698281580] [2023-12-22 12:21:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:36,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:36,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 12:21:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:36,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:21:36,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:21:36,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:36,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:36,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698281580] [2023-12-22 12:21:36,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698281580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:36,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:36,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:21:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976610249] [2023-12-22 12:21:36,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:36,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:36,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:36,941 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:39,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:39,972 INFO L93 Difference]: Finished difference Result 1965 states and 2655 transitions. [2023-12-22 12:21:39,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:21:39,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-22 12:21:39,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:39,977 INFO L225 Difference]: With dead ends: 1965 [2023-12-22 12:21:39,978 INFO L226 Difference]: Without dead ends: 1251 [2023-12-22 12:21:39,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:39,982 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:39,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 86 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 12:21:39,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-12-22 12:21:40,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1249. [2023-12-22 12:21:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2467948717948718) internal successors, (1556), 1248 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1556 transitions. [2023-12-22 12:21:40,013 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1556 transitions. Word has length 99 [2023-12-22 12:21:40,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:40,014 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1556 transitions. [2023-12-22 12:21:40,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1556 transitions. [2023-12-22 12:21:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 12:21:40,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:40,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:40,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 12:21:40,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:40,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:40,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:40,219 INFO L85 PathProgramCache]: Analyzing trace with hash -864495342, now seen corresponding path program 1 times [2023-12-22 12:21:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:40,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638840658] [2023-12-22 12:21:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:40,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:40,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:40,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 12:21:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:40,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 12:21:40,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:21:40,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:40,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638840658] [2023-12-22 12:21:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638840658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:40,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:21:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890391711] [2023-12-22 12:21:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:40,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:21:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:40,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:21:40,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:21:40,875 INFO L87 Difference]: Start difference. First operand 1249 states and 1556 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:43,379 INFO L93 Difference]: Finished difference Result 2170 states and 2741 transitions. [2023-12-22 12:21:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:21:43,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-22 12:21:43,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:43,384 INFO L225 Difference]: With dead ends: 2170 [2023-12-22 12:21:43,384 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:21:43,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:21:43,386 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:43,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 110 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 12:21:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:21:43,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:21:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-22 12:21:43,431 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 111 [2023-12-22 12:21:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:43,431 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-22 12:21:43,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:43,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-22 12:21:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-22 12:21:43,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:43,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:21:43,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 12:21:43,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:43,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:43,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:43,637 INFO L85 PathProgramCache]: Analyzing trace with hash 318660927, now seen corresponding path program 1 times [2023-12-22 12:21:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778497] [2023-12-22 12:21:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:43,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:43,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:43,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:43,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 12:21:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:43,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:21:43,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-22 12:21:44,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:21:44,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778497] [2023-12-22 12:21:44,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:21:44,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:21:44,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:21:44,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420389316] [2023-12-22 12:21:44,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:44,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:44,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:44,521 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:46,692 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-22 12:21:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:21:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2023-12-22 12:21:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:46,696 INFO L225 Difference]: With dead ends: 1785 [2023-12-22 12:21:46,696 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:21:46,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:21:46,698 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:46,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 12:21:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:21:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:21:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-22 12:21:46,716 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 206 [2023-12-22 12:21:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:46,717 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-22 12:21:46,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:46,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-22 12:21:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-22 12:21:46,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:46,721 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:46,727 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 [2023-12-22 12:21:46,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:46,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:46,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1693144817, now seen corresponding path program 1 times [2023-12-22 12:21:46,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:46,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203997909] [2023-12-22 12:21:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:46,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:46,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:46,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 12:21:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:47,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:21:47,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 89 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:21:47,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:21:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:21:48,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:48,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203997909] [2023-12-22 12:21:48,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203997909] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:21:48,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:21:48,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:21:48,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748457198] [2023-12-22 12:21:48,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:48,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:48,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:48,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:21:48,052 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:54,278 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-22 12:21:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:21:54,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2023-12-22 12:21:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:54,283 INFO L225 Difference]: With dead ends: 2141 [2023-12-22 12:21:54,284 INFO L226 Difference]: Without dead ends: 1427 [2023-12-22 12:21:54,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:21:54,286 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 134 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:54,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-22 12:21:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-22 12:21:54,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-22 12:21:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.2391304347826086) internal successors, (1767), 1426 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:54,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1767 transitions. [2023-12-22 12:21:54,313 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1767 transitions. Word has length 310 [2023-12-22 12:21:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:54,314 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1767 transitions. [2023-12-22 12:21:54,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:21:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1767 transitions. [2023-12-22 12:21:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-22 12:21:54,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:54,318 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:54,324 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 [2023-12-22 12:21:54,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:54,524 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:54,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1922038223, now seen corresponding path program 1 times [2023-12-22 12:21:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:54,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446500432] [2023-12-22 12:21:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:54,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:21:54,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:54,527 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:21:54,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 12:21:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:54,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:21:54,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 89 proven. 159 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:21:55,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:21:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:21:55,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:55,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446500432] [2023-12-22 12:21:55,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446500432] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:21:55,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:21:55,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:21:55,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097155783] [2023-12-22 12:21:55,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:21:55,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:55,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:21:55,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:21:55,812 INFO L87 Difference]: Start difference. First operand 1427 states and 1767 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:01,041 INFO L93 Difference]: Finished difference Result 3209 states and 4152 transitions. [2023-12-22 12:22:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:22:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2023-12-22 12:22:01,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:01,048 INFO L225 Difference]: With dead ends: 3209 [2023-12-22 12:22:01,048 INFO L226 Difference]: Without dead ends: 2139 [2023-12-22 12:22:01,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:22:01,051 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:01,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 247 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-22 12:22:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-22 12:22:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-22 12:22:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-22 12:22:01,083 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 322 [2023-12-22 12:22:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:01,083 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-22 12:22:01,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-22 12:22:01,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-22 12:22:01,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:01,088 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:22:01,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:01,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:22:01,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:01,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1617048311, now seen corresponding path program 1 times [2023-12-22 12:22:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:01,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532017228] [2023-12-22 12:22:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:01,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:22:01,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:01,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:22:01,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 12:22:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:01,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:22:01,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 3 proven. 277 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:22:02,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:22:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 251 proven. 29 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:22:09,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:22:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532017228] [2023-12-22 12:22:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532017228] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:22:09,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:22:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 12:22:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876152078] [2023-12-22 12:22:09,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:22:09,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 12:22:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:22:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 12:22:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 12:22:09,123 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 8 states, 8 states have (on average 58.5) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:40,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:22:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:44,883 INFO L93 Difference]: Finished difference Result 5819 states and 7410 transitions. [2023-12-22 12:22:44,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:22:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 58.5) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2023-12-22 12:22:44,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:44,893 INFO L225 Difference]: With dead ends: 5819 [2023-12-22 12:22:44,893 INFO L226 Difference]: Without dead ends: 3921 [2023-12-22 12:22:44,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:22:44,897 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 534 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:44,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 44 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 35.4s Time] [2023-12-22 12:22:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2023-12-22 12:22:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3741. [2023-12-22 12:22:44,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.108288770053476) internal successors, (4145), 3740 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4145 transitions. [2023-12-22 12:22:44,953 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4145 transitions. Word has length 338 [2023-12-22 12:22:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:44,954 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 4145 transitions. [2023-12-22 12:22:44,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.5) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:22:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4145 transitions. [2023-12-22 12:22:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2023-12-22 12:22:44,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:44,960 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:22:44,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:45,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:22:45,166 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:45,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:45,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1434946763, now seen corresponding path program 1 times [2023-12-22 12:22:45,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:45,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041693324] [2023-12-22 12:22:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:45,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:22:45,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:45,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:22:45,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 12:22:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:45,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:22:45,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 253 proven. 898 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:22:51,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:23:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 883 proven. 268 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:23:11,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:11,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041693324] [2023-12-22 12:23:11,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041693324] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:23:11,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:23:11,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-22 12:23:11,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087562855] [2023-12-22 12:23:11,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:23:11,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-22 12:23:11,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-22 12:23:11,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:23:11,019 INFO L87 Difference]: Start difference. First operand 3741 states and 4145 transitions. Second operand has 21 states, 21 states have (on average 52.80952380952381) internal successors, (1109), 21 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:16,049 INFO L93 Difference]: Finished difference Result 7107 states and 7921 transitions. [2023-12-22 12:23:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 12:23:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 52.80952380952381) internal successors, (1109), 21 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 685 [2023-12-22 12:23:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:16,058 INFO L225 Difference]: With dead ends: 7107 [2023-12-22 12:23:16,058 INFO L226 Difference]: Without dead ends: 4079 [2023-12-22 12:23:16,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1349 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:23:16,062 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 278 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 4202 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 4233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:16,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 100 Invalid, 4233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4202 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-22 12:23:16,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2023-12-22 12:23:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3554. [2023-12-22 12:23:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 1.1122994652406417) internal successors, (3952), 3553 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 3952 transitions. [2023-12-22 12:23:16,110 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 3952 transitions. Word has length 685 [2023-12-22 12:23:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:16,111 INFO L495 AbstractCegarLoop]: Abstraction has 3554 states and 3952 transitions. [2023-12-22 12:23:16,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 52.80952380952381) internal successors, (1109), 21 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 3952 transitions. [2023-12-22 12:23:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2023-12-22 12:23:16,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:16,117 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:23:16,125 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 [2023-12-22 12:23:16,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:23:16,322 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:16,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1844659880, now seen corresponding path program 1 times [2023-12-22 12:23:16,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:16,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246095367] [2023-12-22 12:23:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:16,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:23:16,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:16,326 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:23:16,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 12:23:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:16,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 12:23:16,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 728 proven. 420 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-12-22 12:23:20,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:23:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 1112 proven. 36 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-12-22 12:23:30,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246095367] [2023-12-22 12:23:30,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246095367] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:23:30,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:23:30,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-22 12:23:30,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688328397] [2023-12-22 12:23:30,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:23:30,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 12:23:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 12:23:30,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:23:30,923 INFO L87 Difference]: Start difference. First operand 3554 states and 3952 transitions. Second operand has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:42,474 INFO L93 Difference]: Finished difference Result 7435 states and 8248 transitions. [2023-12-22 12:23:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:23:42,475 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 703 [2023-12-22 12:23:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:42,488 INFO L225 Difference]: With dead ends: 7435 [2023-12-22 12:23:42,488 INFO L226 Difference]: Without dead ends: 3864 [2023-12-22 12:23:42,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1390 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=264, Invalid=606, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:23:42,492 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1362 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7779 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 7779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:42,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 103 Invalid, 7902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 7779 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2023-12-22 12:23:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2023-12-22 12:23:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3531. [2023-12-22 12:23:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3530 states have (on average 1.086685552407932) internal successors, (3836), 3530 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 3836 transitions. [2023-12-22 12:23:42,553 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 3836 transitions. Word has length 703 [2023-12-22 12:23:42,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:42,554 INFO L495 AbstractCegarLoop]: Abstraction has 3531 states and 3836 transitions. [2023-12-22 12:23:42,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 3836 transitions. [2023-12-22 12:23:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2023-12-22 12:23:42,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:42,562 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:23:42,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 12:23:42,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:23:42,770 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:42,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1080182214, now seen corresponding path program 1 times [2023-12-22 12:23:42,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:42,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447700303] [2023-12-22 12:23:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:42,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:23:42,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:42,774 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:23:42,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 12:23:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:43,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:23:43,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 104 proven. 1325 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:23:50,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:25:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 1055 proven. 358 refuted. 16 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:25:32,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:25:32,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447700303] [2023-12-22 12:25:32,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447700303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:25:32,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:25:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2023-12-22 12:25:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406857095] [2023-12-22 12:25:32,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:25:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-22 12:25:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:25:32,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-22 12:25:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=360, Unknown=2, NotChecked=0, Total=506 [2023-12-22 12:25:32,814 INFO L87 Difference]: Start difference. First operand 3531 states and 3836 transitions. Second operand has 23 states, 23 states have (on average 48.69565217391305) internal successors, (1120), 23 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:25:48,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:25:52,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:25:56,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:26:00,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:26:06,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:26:42,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:27:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:27:31,728 INFO L93 Difference]: Finished difference Result 7684 states and 8341 transitions. [2023-12-22 12:27:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:27:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 48.69565217391305) internal successors, (1120), 23 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 780 [2023-12-22 12:27:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:27:31,740 INFO L225 Difference]: With dead ends: 7684 [2023-12-22 12:27:31,741 INFO L226 Difference]: Without dead ends: 4192 [2023-12-22 12:27:31,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1574 GetRequests, 1541 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=317, Invalid=737, Unknown=2, NotChecked=0, Total=1056 [2023-12-22 12:27:31,744 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1159 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 7027 mSolverCounterSat, 56 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 7087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 7027 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:27:31,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 132 Invalid, 7087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 7027 Invalid, 4 Unknown, 0 Unchecked, 110.7s Time] [2023-12-22 12:27:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2023-12-22 12:27:31,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3781. [2023-12-22 12:27:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3780 states have (on average 1.0825396825396825) internal successors, (4092), 3780 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4092 transitions. [2023-12-22 12:27:31,790 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4092 transitions. Word has length 780 [2023-12-22 12:27:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:27:31,791 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4092 transitions. [2023-12-22 12:27:31,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 48.69565217391305) internal successors, (1120), 23 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4092 transitions. [2023-12-22 12:27:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2023-12-22 12:27:31,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:27:31,799 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:27:31,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 12:27:32,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:32,006 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:27:32,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:27:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash -898909990, now seen corresponding path program 1 times [2023-12-22 12:27:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:27:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648229294] [2023-12-22 12:27:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:27:32,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:32,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:27:32,010 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:27:32,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 12:27:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:27:32,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:27:32,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:27:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2157 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-12-22 12:27:32,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:27:32,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:27:32,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648229294] [2023-12-22 12:27:32,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648229294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:27:32,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:27:32,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:27:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166136499] [2023-12-22 12:27:32,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:27:32,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:27:32,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:27:32,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:27:32,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:27:32,333 INFO L87 Difference]: Start difference. First operand 3781 states and 4092 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:27:33,959 INFO L93 Difference]: Finished difference Result 5029 states and 5550 transitions. [2023-12-22 12:27:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:27:33,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 852 [2023-12-22 12:27:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:27:33,975 INFO L225 Difference]: With dead ends: 5029 [2023-12-22 12:27:33,975 INFO L226 Difference]: Without dead ends: 5027 [2023-12-22 12:27:33,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:27:33,980 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 160 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:27:33,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 206 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 12:27:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2023-12-22 12:27:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4493. [2023-12-22 12:27:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 4492 states have (on average 1.095725734639359) internal successors, (4922), 4492 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 4922 transitions. [2023-12-22 12:27:34,035 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 4922 transitions. Word has length 852 [2023-12-22 12:27:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:27:34,036 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 4922 transitions. [2023-12-22 12:27:34,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:34,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 4922 transitions. [2023-12-22 12:27:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2023-12-22 12:27:34,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:27:34,043 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:27:34,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 12:27:34,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:34,254 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:27:34,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:27:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash -185839325, now seen corresponding path program 1 times [2023-12-22 12:27:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:27:34,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527621730] [2023-12-22 12:27:34,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:27:34,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:34,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:27:34,258 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:27:34,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 12:27:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:27:34,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:27:34,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:27:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2625 backedges. 1292 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2023-12-22 12:27:34,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:27:34,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:27:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527621730] [2023-12-22 12:27:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527621730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:27:34,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:27:34,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:27:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913903181] [2023-12-22 12:27:34,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:27:34,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:27:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:27:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:27:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:27:34,960 INFO L87 Difference]: Start difference. First operand 4493 states and 4922 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:27:36,494 INFO L93 Difference]: Finished difference Result 8629 states and 9492 transitions. [2023-12-22 12:27:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:27:36,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 875 [2023-12-22 12:27:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:27:36,504 INFO L225 Difference]: With dead ends: 8629 [2023-12-22 12:27:36,504 INFO L226 Difference]: Without dead ends: 4671 [2023-12-22 12:27:36,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 873 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:27:36,507 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:27:36,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 243 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 12:27:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2023-12-22 12:27:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4671. [2023-12-22 12:27:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4671 states, 4670 states have (on average 1.0927194860813705) internal successors, (5103), 4670 states have internal predecessors, (5103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 5103 transitions. [2023-12-22 12:27:36,556 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 5103 transitions. Word has length 875 [2023-12-22 12:27:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:27:36,557 INFO L495 AbstractCegarLoop]: Abstraction has 4671 states and 5103 transitions. [2023-12-22 12:27:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 5103 transitions. [2023-12-22 12:27:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2023-12-22 12:27:36,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:27:36,565 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:27:36,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 12:27:36,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:36,774 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:27:36,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:27:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2024215760, now seen corresponding path program 1 times [2023-12-22 12:27:36,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:27:36,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136289630] [2023-12-22 12:27:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:27:36,777 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 [2023-12-22 12:27:36,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:27:36,778 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:27:36,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 12:27:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:27:37,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:27:37,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:27:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2318 backedges. 1819 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2023-12-22 12:27:37,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:27:37,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:27:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136289630] [2023-12-22 12:27:37,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136289630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:27:37,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:27:37,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 12:27:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928581749] [2023-12-22 12:27:37,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:27:37,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:27:37,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:27:37,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:27:37,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:27:37,842 INFO L87 Difference]: Start difference. First operand 4671 states and 5103 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:39,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:27:39,710 INFO L93 Difference]: Finished difference Result 8985 states and 9854 transitions. [2023-12-22 12:27:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:27:39,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 877 [2023-12-22 12:27:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:27:39,726 INFO L225 Difference]: With dead ends: 8985 [2023-12-22 12:27:39,726 INFO L226 Difference]: Without dead ends: 4849 [2023-12-22 12:27:39,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:27:39,730 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:27:39,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 55 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-22 12:27:39,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2023-12-22 12:27:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4849. [2023-12-22 12:27:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 4848 states have (on average 1.08993399339934) internal successors, (5284), 4848 states have internal predecessors, (5284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 5284 transitions. [2023-12-22 12:27:39,771 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 5284 transitions. Word has length 877 [2023-12-22 12:27:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:27:39,772 INFO L495 AbstractCegarLoop]: Abstraction has 4849 states and 5284 transitions. [2023-12-22 12:27:39,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 5284 transitions. [2023-12-22 12:27:39,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2023-12-22 12:27:39,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:27:39,780 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:27:39,790 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 [2023-12-22 12:27:39,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:39,990 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:27:39,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:27:39,991 INFO L85 PathProgramCache]: Analyzing trace with hash -766792383, now seen corresponding path program 1 times [2023-12-22 12:27:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:27:39,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61131762] [2023-12-22 12:27:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:27:39,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:39,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:27:39,995 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:27:39,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 12:27:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:27:40,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 12:27:40,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:27:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 239 proven. 2135 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:27:41,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:27:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 1719 proven. 82 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:27:44,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:27:44,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61131762] [2023-12-22 12:27:44,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61131762] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:27:44,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:27:44,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 12:27:44,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037556134] [2023-12-22 12:27:44,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:27:44,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 12:27:44,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:27:44,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 12:27:44,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:27:44,328 INFO L87 Difference]: Start difference. First operand 4849 states and 5284 transitions. Second operand has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:27:53,880 INFO L93 Difference]: Finished difference Result 10636 states and 11690 transitions. [2023-12-22 12:27:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:27:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 934 [2023-12-22 12:27:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:27:53,889 INFO L225 Difference]: With dead ends: 10636 [2023-12-22 12:27:53,889 INFO L226 Difference]: Without dead ends: 6322 [2023-12-22 12:27:53,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1868 GetRequests, 1859 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:27:53,895 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 333 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:27:53,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 78 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-12-22 12:27:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6322 states. [2023-12-22 12:27:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6322 to 6066. [2023-12-22 12:27:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6066 states, 6065 states have (on average 1.0819455894476504) internal successors, (6562), 6065 states have internal predecessors, (6562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6066 states to 6066 states and 6562 transitions. [2023-12-22 12:27:53,968 INFO L78 Accepts]: Start accepts. Automaton has 6066 states and 6562 transitions. Word has length 934 [2023-12-22 12:27:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:27:53,968 INFO L495 AbstractCegarLoop]: Abstraction has 6066 states and 6562 transitions. [2023-12-22 12:27:53,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:27:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6066 states and 6562 transitions. [2023-12-22 12:27:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2023-12-22 12:27:53,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:27:53,980 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:27:53,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 12:27:54,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:54,189 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:27:54,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:27:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -370725104, now seen corresponding path program 1 times [2023-12-22 12:27:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:27:54,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25150492] [2023-12-22 12:27:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:27:54,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:27:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:27:54,194 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:27:54,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 12:27:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:27:54,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 12:27:54,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:28:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2981 backedges. 325 proven. 2285 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:28:00,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:28:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2981 backedges. 1919 proven. 118 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:28:18,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:28:18,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25150492] [2023-12-22 12:28:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25150492] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:28:18,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:28:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2023-12-22 12:28:18,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459971109] [2023-12-22 12:28:18,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:28:18,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-22 12:28:18,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:28:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-22 12:28:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2023-12-22 12:28:18,434 INFO L87 Difference]: Start difference. First operand 6066 states and 6562 transitions. Second operand has 23 states, 23 states have (on average 55.0) internal successors, (1265), 22 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:28:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:28:31,228 INFO L93 Difference]: Finished difference Result 11168 states and 12125 transitions. [2023-12-22 12:28:31,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 12:28:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 55.0) internal successors, (1265), 22 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1013 [2023-12-22 12:28:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:28:31,237 INFO L225 Difference]: With dead ends: 11168 [2023-12-22 12:28:31,237 INFO L226 Difference]: Without dead ends: 6130 [2023-12-22 12:28:31,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2031 GetRequests, 2003 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=595, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:28:31,242 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 133 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4721 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 4828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:28:31,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 94 Invalid, 4828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4721 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-12-22 12:28:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6130 states. [2023-12-22 12:28:31,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6130 to 6052. [2023-12-22 12:28:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6052 states, 6051 states have (on average 1.0723847297967277) internal successors, (6489), 6051 states have internal predecessors, (6489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:28:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6052 states to 6052 states and 6489 transitions. [2023-12-22 12:28:31,305 INFO L78 Accepts]: Start accepts. Automaton has 6052 states and 6489 transitions. Word has length 1013 [2023-12-22 12:28:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:28:31,306 INFO L495 AbstractCegarLoop]: Abstraction has 6052 states and 6489 transitions. [2023-12-22 12:28:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 55.0) internal successors, (1265), 22 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:28:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6052 states and 6489 transitions. [2023-12-22 12:28:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2023-12-22 12:28:31,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:28:31,317 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:28:31,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 12:28:31,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:28:31,526 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:28:31,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:28:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -730761767, now seen corresponding path program 1 times [2023-12-22 12:28:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:28:31,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244489940] [2023-12-22 12:28:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:28:31,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:28:31,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:28:31,530 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:28:31,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 12:28:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:28:31,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:28:31,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:28:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 8 proven. 2957 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:28:34,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:28:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:28:44,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:28:44,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244489940] [2023-12-22 12:28:44,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244489940] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:28:44,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:28:44,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:28:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173866542] [2023-12-22 12:28:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:28:44,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:28:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:28:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:28:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:28:44,116 INFO L87 Difference]: Start difference. First operand 6052 states and 6489 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:28:51,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:29:05,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:29:10,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:29:10,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:10,979 INFO L93 Difference]: Finished difference Result 10830 states and 11685 transitions. [2023-12-22 12:29:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:29:10,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1035 [2023-12-22 12:29:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:10,988 INFO L225 Difference]: With dead ends: 10830 [2023-12-22 12:29:10,989 INFO L226 Difference]: Without dead ends: 6052 [2023-12-22 12:29:10,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2068 GetRequests, 2058 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:29:10,995 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 129 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:10,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 17 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 26.8s Time] [2023-12-22 12:29:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2023-12-22 12:29:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 6052. [2023-12-22 12:29:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6052 states, 6051 states have (on average 1.0710626342753264) internal successors, (6481), 6051 states have internal predecessors, (6481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6052 states to 6052 states and 6481 transitions. [2023-12-22 12:29:11,079 INFO L78 Accepts]: Start accepts. Automaton has 6052 states and 6481 transitions. Word has length 1035 [2023-12-22 12:29:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:11,080 INFO L495 AbstractCegarLoop]: Abstraction has 6052 states and 6481 transitions. [2023-12-22 12:29:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6052 states and 6481 transitions. [2023-12-22 12:29:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2023-12-22 12:29:11,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:11,093 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:29:11,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 12:29:11,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:11,304 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:11,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash 410865723, now seen corresponding path program 1 times [2023-12-22 12:29:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526023043] [2023-12-22 12:29:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:11,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:11,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:11,310 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:29:11,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 12:29:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:11,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:29:11,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3266 backedges. 8 proven. 3041 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:29:16,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:29:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3266 backedges. 805 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:29:24,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:24,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526023043] [2023-12-22 12:29:24,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526023043] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:29:24,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:29:24,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:29:24,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765069327] [2023-12-22 12:29:24,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:24,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:29:24,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:24,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:29:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:29:24,394 INFO L87 Difference]: Start difference. First operand 6052 states and 6481 transitions. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:36,455 INFO L93 Difference]: Finished difference Result 10652 states and 11472 transitions. [2023-12-22 12:29:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:29:36,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1047 [2023-12-22 12:29:36,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:36,462 INFO L225 Difference]: With dead ends: 10652 [2023-12-22 12:29:36,462 INFO L226 Difference]: Without dead ends: 5874 [2023-12-22 12:29:36,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2092 GetRequests, 2082 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:29:36,467 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 170 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:36,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 14 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-22 12:29:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5874 states. [2023-12-22 12:29:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5874 to 4870. [2023-12-22 12:29:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4870 states, 4869 states have (on average 1.055042103101253) internal successors, (5137), 4869 states have internal predecessors, (5137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4870 states to 4870 states and 5137 transitions. [2023-12-22 12:29:36,525 INFO L78 Accepts]: Start accepts. Automaton has 4870 states and 5137 transitions. Word has length 1047 [2023-12-22 12:29:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:36,526 INFO L495 AbstractCegarLoop]: Abstraction has 4870 states and 5137 transitions. [2023-12-22 12:29:36,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:36,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4870 states and 5137 transitions. [2023-12-22 12:29:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2023-12-22 12:29:36,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:36,538 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:29:36,551 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 [2023-12-22 12:29:36,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:36,748 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:36,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1070345672, now seen corresponding path program 1 times [2023-12-22 12:29:36,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:36,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005060342] [2023-12-22 12:29:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:36,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:36,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:36,753 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:29:36,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 12:29:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:37,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:29:37,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3460 backedges. 999 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:29:37,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:37,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005060342] [2023-12-22 12:29:37,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005060342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:37,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:37,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:29:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981047186] [2023-12-22 12:29:37,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:37,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:37,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:37,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:37,257 INFO L87 Difference]: Start difference. First operand 4870 states and 5137 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:39,274 INFO L93 Difference]: Finished difference Result 10273 states and 10909 transitions. [2023-12-22 12:29:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:39,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1076 [2023-12-22 12:29:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:39,280 INFO L225 Difference]: With dead ends: 10273 [2023-12-22 12:29:39,280 INFO L226 Difference]: Without dead ends: 5582 [2023-12-22 12:29:39,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1074 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:39,284 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 70 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:39,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 219 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-22 12:29:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5582 states. [2023-12-22 12:29:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5582 to 5226. [2023-12-22 12:29:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5226 states, 5225 states have (on average 1.0551196172248805) internal successors, (5513), 5225 states have internal predecessors, (5513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 5513 transitions. [2023-12-22 12:29:39,342 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 5513 transitions. Word has length 1076 [2023-12-22 12:29:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:39,343 INFO L495 AbstractCegarLoop]: Abstraction has 5226 states and 5513 transitions. [2023-12-22 12:29:39,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 5513 transitions. [2023-12-22 12:29:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1128 [2023-12-22 12:29:39,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:39,357 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:29:39,368 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 (21)] Ended with exit code 0 [2023-12-22 12:29:39,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:39,565 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:39,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1599131609, now seen corresponding path program 1 times [2023-12-22 12:29:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:39,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597742330] [2023-12-22 12:29:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:39,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:29:39,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:39,571 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:29:39,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 12:29:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:39,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 12:29:39,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3825 backedges. 433 proven. 3021 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:29:47,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:30:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3825 backedges. 2517 proven. 364 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:30:24,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:24,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597742330] [2023-12-22 12:30:24,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597742330] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:30:24,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:30:24,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2023-12-22 12:30:24,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492240236] [2023-12-22 12:30:24,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:30:24,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-22 12:30:24,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:24,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-22 12:30:24,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2023-12-22 12:30:24,774 INFO L87 Difference]: Start difference. First operand 5226 states and 5513 transitions. Second operand has 25 states, 25 states have (on average 60.44) internal successors, (1511), 24 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:30:42,110 INFO L93 Difference]: Finished difference Result 9292 states and 9854 transitions. [2023-12-22 12:30:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-22 12:30:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 60.44) internal successors, (1511), 24 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1127 [2023-12-22 12:30:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:30:42,115 INFO L225 Difference]: With dead ends: 9292 [2023-12-22 12:30:42,115 INFO L226 Difference]: Without dead ends: 5220 [2023-12-22 12:30:42,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2260 GetRequests, 2229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=327, Invalid=729, Unknown=0, NotChecked=0, Total=1056 [2023-12-22 12:30:42,119 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 203 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 7684 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 7792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 7684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:30:42,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 151 Invalid, 7792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 7684 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2023-12-22 12:30:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2023-12-22 12:30:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 4892. [2023-12-22 12:30:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4891 states have (on average 1.054385606215498) internal successors, (5157), 4891 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 5157 transitions. [2023-12-22 12:30:42,167 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 5157 transitions. Word has length 1127 [2023-12-22 12:30:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:30:42,168 INFO L495 AbstractCegarLoop]: Abstraction has 4892 states and 5157 transitions. [2023-12-22 12:30:42,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 60.44) internal successors, (1511), 24 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 5157 transitions. [2023-12-22 12:30:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2023-12-22 12:30:42,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:30:42,184 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:30:42,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 12:30:42,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:30:42,395 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:30:42,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:30:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash -741067813, now seen corresponding path program 1 times [2023-12-22 12:30:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:30:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497483554] [2023-12-22 12:30:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:30:42,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:30:42,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:30:42,400 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:30:42,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 12:30:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:30:42,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:30:42,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 5480 backedges. 1944 proven. 0 refuted. 0 times theorem prover too weak. 3536 trivial. 0 not checked. [2023-12-22 12:30:42,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:30:42,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:42,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497483554] [2023-12-22 12:30:42,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497483554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:30:42,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:30:42,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:30:42,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110481163] [2023-12-22 12:30:42,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:30:42,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:30:42,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:42,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:30:42,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:30:42,899 INFO L87 Difference]: Start difference. First operand 4892 states and 5157 transitions. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:45,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:30:45,717 INFO L93 Difference]: Finished difference Result 9456 states and 10083 transitions. [2023-12-22 12:30:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:30:45,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1283 [2023-12-22 12:30:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:30:45,723 INFO L225 Difference]: With dead ends: 9456 [2023-12-22 12:30:45,723 INFO L226 Difference]: Without dead ends: 5604 [2023-12-22 12:30:45,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:30:45,726 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:30:45,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 233 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 12:30:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5604 states. [2023-12-22 12:30:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5604 to 5604. [2023-12-22 12:30:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 1.0478315188291987) internal successors, (5871), 5603 states have internal predecessors, (5871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 5871 transitions. [2023-12-22 12:30:45,780 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 5871 transitions. Word has length 1283 [2023-12-22 12:30:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:30:45,781 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 5871 transitions. [2023-12-22 12:30:45,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 5871 transitions. [2023-12-22 12:30:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2023-12-22 12:30:45,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:30:45,800 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:30:45,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 12:30:46,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:30:46,011 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:30:46,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:30:46,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1657300348, now seen corresponding path program 1 times [2023-12-22 12:30:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:30:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714901983] [2023-12-22 12:30:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:30:46,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:30:46,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:30:46,016 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:30:46,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 12:30:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:30:46,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:30:46,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6761 backedges. 976 proven. 5195 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2023-12-22 12:30:54,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:30:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6761 backedges. 3102 proven. 48 refuted. 0 times theorem prover too weak. 3611 trivial. 0 not checked. [2023-12-22 12:30:59,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:59,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714901983] [2023-12-22 12:30:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714901983] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:30:59,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:30:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:30:59,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671990503] [2023-12-22 12:30:59,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:30:59,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:30:59,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:59,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:30:59,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:30:59,377 INFO L87 Difference]: Start difference. First operand 5604 states and 5871 transitions. Second operand has 12 states, 12 states have (on average 111.75) internal successors, (1341), 11 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:31:14,462 INFO L93 Difference]: Finished difference Result 11750 states and 12363 transitions. [2023-12-22 12:31:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:31:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 111.75) internal successors, (1341), 11 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1461 [2023-12-22 12:31:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:31:14,476 INFO L225 Difference]: With dead ends: 11750 [2023-12-22 12:31:14,476 INFO L226 Difference]: Without dead ends: 7138 [2023-12-22 12:31:14,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2921 GetRequests, 2910 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:31:14,482 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 129 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 6840 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 6900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 6840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:31:14,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 161 Invalid, 6900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 6840 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-12-22 12:31:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2023-12-22 12:31:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 5604. [2023-12-22 12:31:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 1.046225236480457) internal successors, (5862), 5603 states have internal predecessors, (5862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 5862 transitions. [2023-12-22 12:31:14,567 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 5862 transitions. Word has length 1461 [2023-12-22 12:31:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:31:14,568 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 5862 transitions. [2023-12-22 12:31:14,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 111.75) internal successors, (1341), 11 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 5862 transitions. [2023-12-22 12:31:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1470 [2023-12-22 12:31:14,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:31:14,585 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:31:14,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 12:31:14,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:31:14,786 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:31:14,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:31:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1186701456, now seen corresponding path program 1 times [2023-12-22 12:31:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:31:14,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153492655] [2023-12-22 12:31:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:31:14,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:31:14,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:31:14,793 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:31:14,803 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 (25)] Waiting until timeout for monitored process [2023-12-22 12:31:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:31:15,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:31:15,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:31:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6822 backedges. 936 proven. 5292 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:31:23,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:31:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6822 backedges. 3207 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-22 12:31:46,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:31:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153492655] [2023-12-22 12:31:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153492655] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:31:46,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:31:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:31:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472066421] [2023-12-22 12:31:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:31:46,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:31:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:31:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:31:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:31:46,166 INFO L87 Difference]: Start difference. First operand 5604 states and 5862 transitions. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:00,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:32:07,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:32:12,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:32:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:32:12,287 INFO L93 Difference]: Finished difference Result 10334 states and 10843 transitions. [2023-12-22 12:32:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 12:32:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1469 [2023-12-22 12:32:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:32:12,292 INFO L225 Difference]: With dead ends: 10334 [2023-12-22 12:32:12,293 INFO L226 Difference]: Without dead ends: 5742 [2023-12-22 12:32:12,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2936 GetRequests, 2926 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:32:12,297 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 85 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:32:12,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 18 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 26.0s Time] [2023-12-22 12:32:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2023-12-22 12:32:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5604. [2023-12-22 12:32:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 1.0446189541317152) internal successors, (5853), 5603 states have internal predecessors, (5853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 5853 transitions. [2023-12-22 12:32:12,356 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 5853 transitions. Word has length 1469 [2023-12-22 12:32:12,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:32:12,357 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 5853 transitions. [2023-12-22 12:32:12,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 5853 transitions. [2023-12-22 12:32:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1487 [2023-12-22 12:32:12,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:32:12,372 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:32:12,382 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 (25)] Ended with exit code 0 [2023-12-22 12:32:12,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:32:12,573 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:32:12,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:32:12,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1716924154, now seen corresponding path program 1 times [2023-12-22 12:32:12,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:32:12,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406829500] [2023-12-22 12:32:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:32:12,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:32:12,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:32:12,579 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:32:12,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 12:32:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:32:12,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 12:32:13,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:32:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6969 backedges. 84 proven. 6291 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:32:16,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:32:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6969 backedges. 3091 proven. 263 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-22 12:32:38,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:32:38,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406829500] [2023-12-22 12:32:38,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406829500] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:32:38,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:32:38,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2023-12-22 12:32:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529884610] [2023-12-22 12:32:38,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:32:38,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-22 12:32:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:32:38,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-22 12:32:38,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:32:38,919 INFO L87 Difference]: Start difference. First operand 5604 states and 5853 transitions. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:54,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:32:57,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:00,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:07,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:10,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:13,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:15,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:17,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:22,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:22,089 INFO L93 Difference]: Finished difference Result 12460 states and 13087 transitions. [2023-12-22 12:33:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:33:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1486 [2023-12-22 12:33:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:22,112 INFO L225 Difference]: With dead ends: 12460 [2023-12-22 12:33:22,112 INFO L226 Difference]: Without dead ends: 7850 [2023-12-22 12:33:22,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2974 GetRequests, 2961 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-12-22 12:33:22,116 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 285 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9862 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 9925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 9862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:22,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 248 Invalid, 9925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 9862 Invalid, 0 Unknown, 0 Unchecked, 40.8s Time] [2023-12-22 12:33:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7850 states. [2023-12-22 12:33:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7850 to 6922. [2023-12-22 12:33:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6922 states, 6921 states have (on average 1.0393006790926167) internal successors, (7193), 6921 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 7193 transitions. [2023-12-22 12:33:22,212 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 7193 transitions. Word has length 1486 [2023-12-22 12:33:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:22,213 INFO L495 AbstractCegarLoop]: Abstraction has 6922 states and 7193 transitions. [2023-12-22 12:33:22,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 7193 transitions. [2023-12-22 12:33:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2023-12-22 12:33:22,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:33:22,231 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:33:22,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 12:33:22,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:33:22,441 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:33:22,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:33:22,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1053110736, now seen corresponding path program 1 times [2023-12-22 12:33:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:33:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928345888] [2023-12-22 12:33:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:33:22,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:33:22,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:33:22,446 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:33:22,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 12:33:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:33:22,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:33:22,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:33:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7064 backedges. 359 proven. 6046 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2023-12-22 12:33:26,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:33:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 7064 backedges. 3220 proven. 164 refuted. 0 times theorem prover too weak. 3680 trivial. 0 not checked. [2023-12-22 12:33:50,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:50,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928345888] [2023-12-22 12:33:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928345888] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:33:50,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:33:50,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-12-22 12:33:50,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742248062] [2023-12-22 12:33:50,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:33:50,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:33:50,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:50,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:33:50,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:33:50,528 INFO L87 Difference]: Start difference. First operand 6922 states and 7193 transitions. Second operand has 12 states, 12 states have (on average 112.25) internal successors, (1347), 12 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:06,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:34:15,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:34:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:34:35,934 INFO L93 Difference]: Finished difference Result 12642 states and 13283 transitions. [2023-12-22 12:34:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 12:34:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 112.25) internal successors, (1347), 12 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1536 [2023-12-22 12:34:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:34:35,947 INFO L225 Difference]: With dead ends: 12642 [2023-12-22 12:34:35,947 INFO L226 Difference]: Without dead ends: 7672 [2023-12-22 12:34:35,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3078 GetRequests, 3064 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-22 12:34:35,949 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 654 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 10805 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 10915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 10805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:34:35,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 245 Invalid, 10915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 10805 Invalid, 0 Unknown, 0 Unchecked, 43.9s Time] [2023-12-22 12:34:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2023-12-22 12:34:36,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6922. [2023-12-22 12:34:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6922 states, 6921 states have (on average 1.0377113133940181) internal successors, (7182), 6921 states have internal predecessors, (7182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:36,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 7182 transitions. [2023-12-22 12:34:36,030 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 7182 transitions. Word has length 1536 [2023-12-22 12:34:36,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:34:36,031 INFO L495 AbstractCegarLoop]: Abstraction has 6922 states and 7182 transitions. [2023-12-22 12:34:36,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 112.25) internal successors, (1347), 12 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:36,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 7182 transitions. [2023-12-22 12:34:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1595 [2023-12-22 12:34:36,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:34:36,054 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:34:36,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 12:34:36,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:34:36,267 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:34:36,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:34:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash -649092244, now seen corresponding path program 1 times [2023-12-22 12:34:36,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:34:36,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957552668] [2023-12-22 12:34:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:34:36,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:34:36,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:34:36,272 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:34:36,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 12:34:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:34:36,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:34:36,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:34:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8133 backedges. 1357 proven. 0 refuted. 0 times theorem prover too weak. 6776 trivial. 0 not checked. [2023-12-22 12:34:36,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:34:36,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:34:36,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957552668] [2023-12-22 12:34:36,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957552668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:34:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:34:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:34:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207403637] [2023-12-22 12:34:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:34:36,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:34:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:34:36,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:34:36,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:34:36,802 INFO L87 Difference]: Start difference. First operand 6922 states and 7182 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:34:38,863 INFO L93 Difference]: Finished difference Result 11842 states and 12384 transitions. [2023-12-22 12:34:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:34:38,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1594 [2023-12-22 12:34:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:34:38,869 INFO L225 Difference]: With dead ends: 11842 [2023-12-22 12:34:38,869 INFO L226 Difference]: Without dead ends: 7278 [2023-12-22 12:34:38,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1593 GetRequests, 1592 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:34:38,872 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:34:38,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 226 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-22 12:34:38,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2023-12-22 12:34:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 7100. [2023-12-22 12:34:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7100 states, 7099 states have (on average 1.0388787153120158) internal successors, (7375), 7099 states have internal predecessors, (7375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7100 states to 7100 states and 7375 transitions. [2023-12-22 12:34:38,949 INFO L78 Accepts]: Start accepts. Automaton has 7100 states and 7375 transitions. Word has length 1594 [2023-12-22 12:34:38,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:34:38,950 INFO L495 AbstractCegarLoop]: Abstraction has 7100 states and 7375 transitions. [2023-12-22 12:34:38,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:38,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7100 states and 7375 transitions. [2023-12-22 12:34:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1674 [2023-12-22 12:34:38,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:34:38,968 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:34:38,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 12:34:39,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:34:39,169 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:34:39,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:34:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1615500677, now seen corresponding path program 1 times [2023-12-22 12:34:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:34:39,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223064973] [2023-12-22 12:34:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:34:39,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:34:39,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:34:39,175 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:34:39,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 12:34:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:34:39,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 12:34:39,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:34:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8602 backedges. 389 proven. 7619 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:34:48,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:34:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8602 backedges. 5738 proven. 693 refuted. 0 times theorem prover too weak. 2171 trivial. 0 not checked. [2023-12-22 12:34:59,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:34:59,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223064973] [2023-12-22 12:34:59,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223064973] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:34:59,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:34:59,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-12-22 12:34:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363157931] [2023-12-22 12:34:59,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:34:59,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 12:34:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:34:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 12:34:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-12-22 12:34:59,150 INFO L87 Difference]: Start difference. First operand 7100 states and 7375 transitions. Second operand has 16 states, 16 states have (on average 119.5) internal successors, (1912), 15 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:17,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:35:17,638 INFO L93 Difference]: Finished difference Result 13917 states and 14605 transitions. [2023-12-22 12:35:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-22 12:35:17,639 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 119.5) internal successors, (1912), 15 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1673 [2023-12-22 12:35:17,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:35:17,646 INFO L225 Difference]: With dead ends: 13917 [2023-12-22 12:35:17,646 INFO L226 Difference]: Without dead ends: 9175 [2023-12-22 12:35:17,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3358 GetRequests, 3330 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=693, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:35:17,650 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 432 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 14494 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 14616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 14494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:35:17,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 260 Invalid, 14616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 14494 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2023-12-22 12:35:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9175 states. [2023-12-22 12:35:17,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9175 to 7100. [2023-12-22 12:35:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7100 states, 7099 states have (on average 1.0388787153120158) internal successors, (7375), 7099 states have internal predecessors, (7375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7100 states to 7100 states and 7375 transitions. [2023-12-22 12:35:17,739 INFO L78 Accepts]: Start accepts. Automaton has 7100 states and 7375 transitions. Word has length 1673 [2023-12-22 12:35:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:35:17,740 INFO L495 AbstractCegarLoop]: Abstraction has 7100 states and 7375 transitions. [2023-12-22 12:35:17,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 119.5) internal successors, (1912), 15 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7100 states and 7375 transitions. [2023-12-22 12:35:17,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2023-12-22 12:35:17,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:35:17,759 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:35:17,768 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 [2023-12-22 12:35:17,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:35:17,960 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:35:17,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:35:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1686931376, now seen corresponding path program 1 times [2023-12-22 12:35:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:35:17,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907854652] [2023-12-22 12:35:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:35:17,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:35:17,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:35:17,966 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:35:17,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 12:35:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:35:18,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:35:18,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:35:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8636 backedges. 2688 proven. 5396 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-22 12:35:25,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-22 12:35:32,843 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 [2023-12-22 12:35:32,844 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 (30)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:35:32,856 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:35:32,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 12:35:33,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:35:33,059 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1691 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-22 12:35:33,063 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] [2023-12-22 12:35:33,066 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:35:33,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:35:33 BoogieIcfgContainer [2023-12-22 12:35:33,073 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:35:33,075 INFO L158 Benchmark]: Toolchain (without parser) took 848809.45ms. Allocated memory was 272.6MB in the beginning and 833.6MB in the end (delta: 561.0MB). Free memory was 218.7MB in the beginning and 378.1MB in the end (delta: -159.4MB). Peak memory consumption was 403.1MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,076 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 182.5MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:35:33,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.35ms. Allocated memory is still 272.6MB. Free memory was 218.6MB in the beginning and 180.5MB in the end (delta: 38.1MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.54ms. Allocated memory is still 272.6MB. Free memory was 180.5MB in the beginning and 237.9MB in the end (delta: -57.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,076 INFO L158 Benchmark]: Boogie Preprocessor took 83.52ms. Allocated memory is still 272.6MB. Free memory was 237.9MB in the beginning and 231.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,076 INFO L158 Benchmark]: RCFGBuilder took 3221.89ms. Allocated memory is still 272.6MB. Free memory was 231.1MB in the beginning and 210.7MB in the end (delta: 20.4MB). Peak memory consumption was 110.1MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,077 INFO L158 Benchmark]: TraceAbstraction took 844801.87ms. Allocated memory was 272.6MB in the beginning and 833.6MB in the end (delta: 561.0MB). Free memory was 210.2MB in the beginning and 378.1MB in the end (delta: -167.9MB). Peak memory consumption was 393.1MB. Max. memory is 8.0GB. [2023-12-22 12:35:33,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 182.5MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 598.35ms. Allocated memory is still 272.6MB. Free memory was 218.6MB in the beginning and 180.5MB in the end (delta: 38.1MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 96.54ms. Allocated memory is still 272.6MB. Free memory was 180.5MB in the beginning and 237.9MB in the end (delta: -57.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.52ms. Allocated memory is still 272.6MB. Free memory was 237.9MB in the beginning and 231.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3221.89ms. Allocated memory is still 272.6MB. Free memory was 231.1MB in the beginning and 210.7MB in the end (delta: 20.4MB). Peak memory consumption was 110.1MB. Max. memory is 8.0GB. * TraceAbstraction took 844801.87ms. Allocated memory was 272.6MB in the beginning and 833.6MB in the end (delta: 561.0MB). Free memory was 210.2MB in the beginning and 378.1MB in the end (delta: -167.9MB). Peak memory consumption was 393.1MB. 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: 110]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 110). Cancelled while NwaCegarLoop was analyzing trace of length 1691 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 844.7s, OverallIterations: 29, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 436.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 7243 SdHoareTripleChecker+Valid, 419.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7243 mSDsluCounter, 3925 SdHoareTripleChecker+Invalid, 378.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1381 mSDsCounter, 2058 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88554 IncrementalHoareTripleChecker+Invalid, 90616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2058 mSolverCounterUnsat, 2544 mSDtfsCounter, 88554 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39000 GetRequests, 38730 SyntacticMatches, 2 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 46.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7100occurred in iteration=27, InterpolantAutomatonStates: 253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 28 MinimizatonAttempts, 9610 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 378.4s InterpolantComputationTime, 23050 NumberOfCodeBlocks, 23050 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 38925 ConstructedInterpolants, 0 QuantifiedInterpolants, 290820 SizeOfPredicates, 35 NumberOfNonLiveVariables, 25477 ConjunctsInSsa, 206 ConjunctsInUnsatCore, 44 InterpolantComputations, 17 PerfectInterpolantSequences, 89898/139433 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