/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/Problem03_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 03:34:07,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 03:34:07,401 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 03:34:07,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 03:34:07,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 03:34:07,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 03:34:07,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 03:34:07,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 03:34:07,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 03:34:07,440 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 03:34:07,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 03:34:07,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 03:34:07,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 03:34:07,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 03:34:07,443 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 03:34:07,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 03:34:07,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 03:34:07,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 03:34:07,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 03:34:07,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 03:34:07,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 03:34:07,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 03:34:07,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 03:34:07,445 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 03:34:07,446 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 03:34:07,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 03:34:07,446 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 03:34:07,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 03:34:07,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 03:34:07,447 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 03:34:07,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 03:34:07,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 03:34:07,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 03:34:07,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 03:34:07,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:34:07,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 03:34:07,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 03:34:07,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 03:34:07,448 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 03:34:07,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 03:34:07,450 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 03:34:07,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 03:34:07,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 03:34:07,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 03:34:07,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 03:34:07,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 03:34:07,718 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 03:34:07,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label01.c [2023-12-22 03:34:08,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 03:34:09,285 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 03:34:09,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label01.c [2023-12-22 03:34:09,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96c45b56/9feb8b6188db465ba2fec7776477f44b/FLAG61266a59d [2023-12-22 03:34:09,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96c45b56/9feb8b6188db465ba2fec7776477f44b [2023-12-22 03:34:09,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 03:34:09,317 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 03:34:09,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 03:34:09,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 03:34:09,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 03:34:09,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:34:09" (1/1) ... [2023-12-22 03:34:09,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ae19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:09, skipping insertion in model container [2023-12-22 03:34:09,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:34:09" (1/1) ... [2023-12-22 03:34:09,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 03:34:09,887 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/Problem03_label01.c[59340,59353] [2023-12-22 03:34:09,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:34:09,941 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 03:34:10,141 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/Problem03_label01.c[59340,59353] [2023-12-22 03:34:10,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:34:10,165 INFO L206 MainTranslator]: Completed translation [2023-12-22 03:34:10,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10 WrapperNode [2023-12-22 03:34:10,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 03:34:10,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 03:34:10,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 03:34:10,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 03:34:10,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,289 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-22 03:34:10,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 03:34:10,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 03:34:10,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 03:34:10,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 03:34:10,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,360 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 03:34:10,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 03:34:10,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 03:34:10,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 03:34:10,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 03:34:10,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (1/1) ... [2023-12-22 03:34:10,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:34:10,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 03:34:10,497 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 03:34:10,520 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 03:34:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 03:34:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 03:34:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 03:34:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 03:34:10,626 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 03:34:10,628 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 03:34:12,524 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 03:34:12,611 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 03:34:12,611 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 03:34:12,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:12 BoogieIcfgContainer [2023-12-22 03:34:12,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 03:34:12,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 03:34:12,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 03:34:12,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 03:34:12,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:34:09" (1/3) ... [2023-12-22 03:34:12,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c0551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:12, skipping insertion in model container [2023-12-22 03:34:12,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:10" (2/3) ... [2023-12-22 03:34:12,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c0551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:12, skipping insertion in model container [2023-12-22 03:34:12,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:12" (3/3) ... [2023-12-22 03:34:12,619 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label01.c [2023-12-22 03:34:12,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 03:34:12,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 03:34:12,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 03:34:12,700 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;@525236f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 03:34:12,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 03:34:12,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 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 03:34:12,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 03:34:12,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:34:12,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:34:12,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:34:12,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:34:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1075106659, now seen corresponding path program 1 times [2023-12-22 03:34:12,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:34:12,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384930407] [2023-12-22 03:34:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:34:12,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:34:12,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:34:12,748 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 03:34:12,758 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 03:34:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:34:12,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 03:34:12,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:34:13,002 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 03:34:13,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:34:13,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:34:13,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384930407] [2023-12-22 03:34:13,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384930407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:34:13,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:34:13,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:34:13,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101517365] [2023-12-22 03:34:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:34:13,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 03:34:13,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:34:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 03:34:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 03:34:13,063 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 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 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 03:34:13,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:34:13,114 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-22 03:34:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 03:34:13,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 185 [2023-12-22 03:34:13,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:34:13,133 INFO L225 Difference]: With dead ends: 479 [2023-12-22 03:34:13,133 INFO L226 Difference]: Without dead ends: 238 [2023-12-22 03:34:13,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 184 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 03:34:13,138 INFO L413 NwaCegarLoop]: 392 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, 392 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 03:34:13,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 03:34:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-22 03:34:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-22 03:34:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 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 03:34:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-22 03:34:13,178 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 185 [2023-12-22 03:34:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:34:13,179 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-22 03:34:13,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 03:34:13,179 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-22 03:34:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 03:34:13,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:34:13,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:34:13,194 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 03:34:13,394 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 03:34:13,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:34:13,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:34:13,395 INFO L85 PathProgramCache]: Analyzing trace with hash 526205416, now seen corresponding path program 1 times [2023-12-22 03:34:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:34:13,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84724932] [2023-12-22 03:34:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:34:13,398 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 03:34:13,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:34:13,401 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 03:34:13,404 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 03:34:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:34:13,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-22 03:34:13,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:34:32,501 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 03:34:32,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:34:32,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:34:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84724932] [2023-12-22 03:34:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84724932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:34:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:34:32,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-22 03:34:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647598576] [2023-12-22 03:34:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:34:32,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 03:34:32,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:34:32,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 03:34:32,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-22 03:34:32,505 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 10 states, 10 states have (on average 18.5) internal successors, (185), 9 states have internal predecessors, (185), 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 03:34:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:34:38,766 INFO L93 Difference]: Finished difference Result 999 states and 1699 transitions. [2023-12-22 03:34:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 03:34:38,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.5) internal successors, (185), 9 states have internal predecessors, (185), 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 185 [2023-12-22 03:34:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:34:38,771 INFO L225 Difference]: With dead ends: 999 [2023-12-22 03:34:38,771 INFO L226 Difference]: Without dead ends: 762 [2023-12-22 03:34:38,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-22 03:34:38,774 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1472 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4105 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 4105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:34:38,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 345 Invalid, 4335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 4105 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-22 03:34:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-12-22 03:34:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 759. [2023-12-22 03:34:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 1.287598944591029) internal successors, (976), 758 states have internal predecessors, (976), 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 03:34:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 976 transitions. [2023-12-22 03:34:38,811 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 976 transitions. Word has length 185 [2023-12-22 03:34:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:34:38,812 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 976 transitions. [2023-12-22 03:34:38,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.5) internal successors, (185), 9 states have internal predecessors, (185), 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 03:34:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 976 transitions. [2023-12-22 03:34:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-22 03:34:38,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:34:38,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:38,828 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 03:34:39,025 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 03:34:39,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:34:39,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:34:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash -683126825, now seen corresponding path program 1 times [2023-12-22 03:34:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:34:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174081821] [2023-12-22 03:34:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:34:39,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:34:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:34:39,030 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 03:34:39,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 03:34:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:34:39,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-22 03:34:39,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:34:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:34:58,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:34:58,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:34:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174081821] [2023-12-22 03:34:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174081821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:34:58,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:34:58,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-22 03:34:58,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082606502] [2023-12-22 03:34:58,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:34:58,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 03:34:58,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:34:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 03:34:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-22 03:34:58,844 INFO L87 Difference]: Start difference. First operand 759 states and 976 transitions. Second operand has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 10 states have internal predecessors, (192), 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 03:35:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:05,046 INFO L93 Difference]: Finished difference Result 1954 states and 2854 transitions. [2023-12-22 03:35:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-22 03:35:05,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 10 states have internal predecessors, (192), 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 192 [2023-12-22 03:35:05,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:05,054 INFO L225 Difference]: With dead ends: 1954 [2023-12-22 03:35:05,055 INFO L226 Difference]: Without dead ends: 1512 [2023-12-22 03:35:05,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-12-22 03:35:05,063 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1396 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 5389 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 5628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 5389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:05,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 371 Invalid, 5628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 5389 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-22 03:35:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2023-12-22 03:35:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 900. [2023-12-22 03:35:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.25027808676307) internal successors, (1124), 899 states have internal predecessors, (1124), 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 03:35:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1124 transitions. [2023-12-22 03:35:05,103 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1124 transitions. Word has length 192 [2023-12-22 03:35:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:05,104 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1124 transitions. [2023-12-22 03:35:05,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 10 states have internal predecessors, (192), 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 03:35:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1124 transitions. [2023-12-22 03:35:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-22 03:35:05,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:05,113 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:05,118 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 03:35:05,318 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 03:35:05,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:05,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash -369282122, now seen corresponding path program 1 times [2023-12-22 03:35:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:05,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152033739] [2023-12-22 03:35:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:05,321 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 03:35:05,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:05,322 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 03:35:05,323 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 03:35:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:05,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 03:35:05,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:05,820 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-22 03:35:05,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:05,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:05,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152033739] [2023-12-22 03:35:05,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152033739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:05,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:05,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:35:05,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185437813] [2023-12-22 03:35:05,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:05,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:35:05,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:35:05,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:35:05,824 INFO L87 Difference]: Start difference. First operand 900 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 03:35:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:07,775 INFO L93 Difference]: Finished difference Result 2727 states and 3757 transitions. [2023-12-22 03:35:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:35:07,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 200 [2023-12-22 03:35:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:07,783 INFO L225 Difference]: With dead ends: 2727 [2023-12-22 03:35:07,783 INFO L226 Difference]: Without dead ends: 2285 [2023-12-22 03:35:07,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:35:07,785 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 494 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:07,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 85 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 03:35:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2023-12-22 03:35:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 1516. [2023-12-22 03:35:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 1.3557755775577558) internal successors, (2054), 1515 states have internal predecessors, (2054), 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 03:35:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2054 transitions. [2023-12-22 03:35:07,818 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2054 transitions. Word has length 200 [2023-12-22 03:35:07,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:07,819 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 2054 transitions. [2023-12-22 03:35:07,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 03:35:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2054 transitions. [2023-12-22 03:35:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-22 03:35:07,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:07,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:07,830 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 03:35:08,030 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 03:35:08,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:08,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:08,032 INFO L85 PathProgramCache]: Analyzing trace with hash -894183122, now seen corresponding path program 1 times [2023-12-22 03:35:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936118672] [2023-12-22 03:35:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:35:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:08,034 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 03:35:08,037 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 03:35:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:08,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:08,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-22 03:35:08,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:08,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936118672] [2023-12-22 03:35:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936118672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:08,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544959202] [2023-12-22 03:35:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:08,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:08,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:08,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:08,196 INFO L87 Difference]: Start difference. First operand 1516 states and 2054 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 03:35:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:08,545 INFO L93 Difference]: Finished difference Result 3621 states and 5201 transitions. [2023-12-22 03:35:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2023-12-22 03:35:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:08,554 INFO L225 Difference]: With dead ends: 3621 [2023-12-22 03:35:08,554 INFO L226 Difference]: Without dead ends: 2563 [2023-12-22 03:35:08,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:08,557 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 359 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:08,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 555 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 03:35:08,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2023-12-22 03:35:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2561. [2023-12-22 03:35:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 1.409765625) internal successors, (3609), 2560 states have internal predecessors, (3609), 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 03:35:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3609 transitions. [2023-12-22 03:35:08,603 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3609 transitions. Word has length 205 [2023-12-22 03:35:08,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:08,603 INFO L495 AbstractCegarLoop]: Abstraction has 2561 states and 3609 transitions. [2023-12-22 03:35:08,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 03:35:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3609 transitions. [2023-12-22 03:35:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 03:35:08,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:08,615 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:08,623 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 03:35:08,817 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 03:35:08,818 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:08,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1412724170, now seen corresponding path program 1 times [2023-12-22 03:35:08,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:08,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011710908] [2023-12-22 03:35:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:08,820 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 03:35:08,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:08,821 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 03:35:08,825 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 03:35:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:08,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:08,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 03:35:09,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:09,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:09,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011710908] [2023-12-22 03:35:09,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011710908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:09,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:09,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:09,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769741919] [2023-12-22 03:35:09,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:09,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:35:09,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:09,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:35:09,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:35:09,025 INFO L87 Difference]: Start difference. First operand 2561 states and 3609 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:10,175 INFO L93 Difference]: Finished difference Result 8401 states and 12258 transitions. [2023-12-22 03:35:10,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:35:10,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2023-12-22 03:35:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:10,191 INFO L225 Difference]: With dead ends: 8401 [2023-12-22 03:35:10,191 INFO L226 Difference]: Without dead ends: 6298 [2023-12-22 03:35:10,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 215 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 03:35:10,195 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 698 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:10,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 561 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 03:35:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-12-22 03:35:10,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6286. [2023-12-22 03:35:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6286 states, 6285 states have (on average 1.396340493237868) internal successors, (8776), 6285 states have internal predecessors, (8776), 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 03:35:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6286 states to 6286 states and 8776 transitions. [2023-12-22 03:35:10,306 INFO L78 Accepts]: Start accepts. Automaton has 6286 states and 8776 transitions. Word has length 218 [2023-12-22 03:35:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:10,306 INFO L495 AbstractCegarLoop]: Abstraction has 6286 states and 8776 transitions. [2023-12-22 03:35:10,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6286 states and 8776 transitions. [2023-12-22 03:35:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-22 03:35:10,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:10,316 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:10,320 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 03:35:10,520 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 03:35:10,520 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:10,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash -723862442, now seen corresponding path program 1 times [2023-12-22 03:35:10,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:10,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323101929] [2023-12-22 03:35:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:10,523 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 03:35:10,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:10,524 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 03:35:10,549 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 03:35:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:10,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:10,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-22 03:35:10,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:10,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323101929] [2023-12-22 03:35:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323101929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:10,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:10,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:10,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411190811] [2023-12-22 03:35:10,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:10,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:10,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:10,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:10,713 INFO L87 Difference]: Start difference. First operand 6286 states and 8776 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:11,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:11,663 INFO L93 Difference]: Finished difference Result 16591 states and 23447 transitions. [2023-12-22 03:35:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:11,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2023-12-22 03:35:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:11,685 INFO L225 Difference]: With dead ends: 16591 [2023-12-22 03:35:11,685 INFO L226 Difference]: Without dead ends: 10762 [2023-12-22 03:35:11,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 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 03:35:11,693 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 227 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:11,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 389 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:35:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2023-12-22 03:35:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 9538. [2023-12-22 03:35:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9538 states, 9537 states have (on average 1.285204991087344) internal successors, (12257), 9537 states have internal predecessors, (12257), 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 03:35:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9538 states to 9538 states and 12257 transitions. [2023-12-22 03:35:11,890 INFO L78 Accepts]: Start accepts. Automaton has 9538 states and 12257 transitions. Word has length 224 [2023-12-22 03:35:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:11,890 INFO L495 AbstractCegarLoop]: Abstraction has 9538 states and 12257 transitions. [2023-12-22 03:35:11,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9538 states and 12257 transitions. [2023-12-22 03:35:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-22 03:35:11,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:11,904 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:11,913 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 03:35:12,107 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 03:35:12,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:12,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2017042670, now seen corresponding path program 1 times [2023-12-22 03:35:12,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:12,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250136211] [2023-12-22 03:35:12,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:12,110 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 03:35:12,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:12,111 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 03:35:12,112 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 03:35:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:12,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:12,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 03:35:12,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:12,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:12,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250136211] [2023-12-22 03:35:12,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250136211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:12,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:12,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:35:12,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393383202] [2023-12-22 03:35:12,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:12,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:12,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:12,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:12,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:12,281 INFO L87 Difference]: Start difference. First operand 9538 states and 12257 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:12,788 INFO L93 Difference]: Finished difference Result 18541 states and 23936 transitions. [2023-12-22 03:35:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:12,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-12-22 03:35:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:12,807 INFO L225 Difference]: With dead ends: 18541 [2023-12-22 03:35:12,807 INFO L226 Difference]: Without dead ends: 9460 [2023-12-22 03:35:12,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 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 03:35:12,817 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 321 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:12,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 29 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 03:35:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9460 states. [2023-12-22 03:35:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9460 to 9460. [2023-12-22 03:35:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9460 states, 9459 states have (on average 1.2222222222222223) internal successors, (11561), 9459 states have internal predecessors, (11561), 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 03:35:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9460 states to 9460 states and 11561 transitions. [2023-12-22 03:35:12,961 INFO L78 Accepts]: Start accepts. Automaton has 9460 states and 11561 transitions. Word has length 238 [2023-12-22 03:35:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:12,961 INFO L495 AbstractCegarLoop]: Abstraction has 9460 states and 11561 transitions. [2023-12-22 03:35:12,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:35:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 9460 states and 11561 transitions. [2023-12-22 03:35:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-22 03:35:12,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:12,976 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:12,981 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 03:35:13,180 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 03:35:13,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:13,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:13,181 INFO L85 PathProgramCache]: Analyzing trace with hash 195970301, now seen corresponding path program 1 times [2023-12-22 03:35:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:13,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394604099] [2023-12-22 03:35:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:13,183 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 03:35:13,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:13,184 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 03:35:13,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 03:35:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:13,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:13,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-22 03:35:13,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:13,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394604099] [2023-12-22 03:35:13,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394604099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:13,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398204142] [2023-12-22 03:35:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:13,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:13,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:13,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:13,488 INFO L87 Difference]: Start difference. First operand 9460 states and 11561 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 03:35:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:14,409 INFO L93 Difference]: Finished difference Result 24764 states and 30621 transitions. [2023-12-22 03:35:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:14,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 285 [2023-12-22 03:35:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:14,434 INFO L225 Difference]: With dead ends: 24764 [2023-12-22 03:35:14,434 INFO L226 Difference]: Without dead ends: 15761 [2023-12-22 03:35:14,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 283 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 03:35:14,447 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 203 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 333 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:35:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15761 states. [2023-12-22 03:35:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15761 to 15761. [2023-12-22 03:35:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15761 states, 15760 states have (on average 1.1813451776649746) internal successors, (18618), 15760 states have internal predecessors, (18618), 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 03:35:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15761 states to 15761 states and 18618 transitions. [2023-12-22 03:35:14,641 INFO L78 Accepts]: Start accepts. Automaton has 15761 states and 18618 transitions. Word has length 285 [2023-12-22 03:35:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:14,641 INFO L495 AbstractCegarLoop]: Abstraction has 15761 states and 18618 transitions. [2023-12-22 03:35:14,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 03:35:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 15761 states and 18618 transitions. [2023-12-22 03:35:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-22 03:35:14,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:14,657 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:14,664 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 03:35:14,861 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 03:35:14,861 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:14,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1179340872, now seen corresponding path program 1 times [2023-12-22 03:35:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273281493] [2023-12-22 03:35:14,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:14,864 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 03:35:14,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:14,865 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 03:35:14,869 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 03:35:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:15,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:35:15,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-22 03:35:15,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:15,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:15,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273281493] [2023-12-22 03:35:15,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273281493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:15,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:15,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:15,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558298222] [2023-12-22 03:35:15,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:15,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:35:15,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:35:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:35:15,183 INFO L87 Difference]: Start difference. First operand 15761 states and 18618 transitions. Second operand has 4 states, 4 states have (on average 53.25) 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 03:35:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:16,715 INFO L93 Difference]: Finished difference Result 40033 states and 47400 transitions. [2023-12-22 03:35:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:35:16,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) 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 297 [2023-12-22 03:35:16,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:16,759 INFO L225 Difference]: With dead ends: 40033 [2023-12-22 03:35:16,759 INFO L226 Difference]: Without dead ends: 24729 [2023-12-22 03:35:16,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 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 03:35:16,780 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 574 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:16,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 310 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 03:35:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24729 states. [2023-12-22 03:35:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24729 to 24725. [2023-12-22 03:35:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24725 states, 24724 states have (on average 1.1790567869276816) internal successors, (29151), 24724 states have internal predecessors, (29151), 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 03:35:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24725 states to 24725 states and 29151 transitions. [2023-12-22 03:35:17,187 INFO L78 Accepts]: Start accepts. Automaton has 24725 states and 29151 transitions. Word has length 297 [2023-12-22 03:35:17,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:17,188 INFO L495 AbstractCegarLoop]: Abstraction has 24725 states and 29151 transitions. [2023-12-22 03:35:17,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) 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 03:35:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 24725 states and 29151 transitions. [2023-12-22 03:35:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-22 03:35:17,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:17,208 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:17,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-22 03:35:17,415 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 03:35:17,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:17,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:17,416 INFO L85 PathProgramCache]: Analyzing trace with hash 37693157, now seen corresponding path program 1 times [2023-12-22 03:35:17,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415253521] [2023-12-22 03:35:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:17,418 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 03:35:17,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:17,419 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 03:35:17,421 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 03:35:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:17,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:17,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 03:35:17,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:17,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:17,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415253521] [2023-12-22 03:35:17,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415253521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:17,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:17,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:35:17,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713164628] [2023-12-22 03:35:17,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:17,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:17,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:17,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:17,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:17,653 INFO L87 Difference]: Start difference. First operand 24725 states and 29151 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 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 03:35:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:18,796 INFO L93 Difference]: Finished difference Result 55311 states and 65655 transitions. [2023-12-22 03:35:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 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 298 [2023-12-22 03:35:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:18,846 INFO L225 Difference]: With dead ends: 55311 [2023-12-22 03:35:18,846 INFO L226 Difference]: Without dead ends: 30840 [2023-12-22 03:35:18,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 296 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 03:35:18,870 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 214 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:18,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 170 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 03:35:18,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30840 states. [2023-12-22 03:35:19,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30840 to 30838. [2023-12-22 03:35:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30838 states, 30837 states have (on average 1.1772545967506567) internal successors, (36303), 30837 states have internal predecessors, (36303), 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 03:35:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30838 states to 30838 states and 36303 transitions. [2023-12-22 03:35:19,361 INFO L78 Accepts]: Start accepts. Automaton has 30838 states and 36303 transitions. Word has length 298 [2023-12-22 03:35:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:19,362 INFO L495 AbstractCegarLoop]: Abstraction has 30838 states and 36303 transitions. [2023-12-22 03:35:19,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 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 03:35:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 30838 states and 36303 transitions. [2023-12-22 03:35:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-22 03:35:19,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:19,379 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:19,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 03:35:19,579 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 03:35:19,580 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:19,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash -164811940, now seen corresponding path program 1 times [2023-12-22 03:35:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:19,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301435552] [2023-12-22 03:35:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:35:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:19,583 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 03:35:19,584 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 03:35:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:19,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:19,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-22 03:35:19,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:19,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301435552] [2023-12-22 03:35:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301435552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:19,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:19,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479529660] [2023-12-22 03:35:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:19,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:19,894 INFO L87 Difference]: Start difference. First operand 30838 states and 36303 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 03:35:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:20,963 INFO L93 Difference]: Finished difference Result 87227 states and 103113 transitions. [2023-12-22 03:35:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 315 [2023-12-22 03:35:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:21,031 INFO L225 Difference]: With dead ends: 87227 [2023-12-22 03:35:21,031 INFO L226 Difference]: Without dead ends: 56643 [2023-12-22 03:35:21,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 313 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 03:35:21,062 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 211 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:21,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 268 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:35:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56643 states. [2023-12-22 03:35:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56643 to 56628. [2023-12-22 03:35:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56628 states, 56627 states have (on average 1.1526127112508167) internal successors, (65269), 56627 states have internal predecessors, (65269), 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 03:35:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56628 states to 56628 states and 65269 transitions. [2023-12-22 03:35:21,816 INFO L78 Accepts]: Start accepts. Automaton has 56628 states and 65269 transitions. Word has length 315 [2023-12-22 03:35:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:21,817 INFO L495 AbstractCegarLoop]: Abstraction has 56628 states and 65269 transitions. [2023-12-22 03:35:21,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 03:35:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 56628 states and 65269 transitions. [2023-12-22 03:35:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-12-22 03:35:21,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:21,837 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:21,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 03:35:22,038 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 03:35:22,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:22,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:22,039 INFO L85 PathProgramCache]: Analyzing trace with hash -11228171, now seen corresponding path program 1 times [2023-12-22 03:35:22,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:22,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950915235] [2023-12-22 03:35:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:22,041 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 03:35:22,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:22,042 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 03:35:22,043 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 03:35:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:22,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:22,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:35:22,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:22,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:22,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950915235] [2023-12-22 03:35:22,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950915235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:22,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:22,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:22,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944904439] [2023-12-22 03:35:22,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:22,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:35:22,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:22,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:35:22,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:35:22,617 INFO L87 Difference]: Start difference. First operand 56628 states and 65269 transitions. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 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 03:35:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:24,288 INFO L93 Difference]: Finished difference Result 171436 states and 198372 transitions. [2023-12-22 03:35:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:35:24,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 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 318 [2023-12-22 03:35:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:24,554 INFO L225 Difference]: With dead ends: 171436 [2023-12-22 03:35:24,554 INFO L226 Difference]: Without dead ends: 115062 [2023-12-22 03:35:24,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 315 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 03:35:24,580 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 500 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:24,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 447 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 03:35:24,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115062 states. [2023-12-22 03:35:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115062 to 111760. [2023-12-22 03:35:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111760 states, 111759 states have (on average 1.157061176281105) internal successors, (129312), 111759 states have internal predecessors, (129312), 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 03:35:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111760 states to 111760 states and 129312 transitions. [2023-12-22 03:35:26,140 INFO L78 Accepts]: Start accepts. Automaton has 111760 states and 129312 transitions. Word has length 318 [2023-12-22 03:35:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:26,140 INFO L495 AbstractCegarLoop]: Abstraction has 111760 states and 129312 transitions. [2023-12-22 03:35:26,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 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 03:35:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 111760 states and 129312 transitions. [2023-12-22 03:35:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-22 03:35:26,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:26,340 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:26,343 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 03:35:26,540 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 03:35:26,541 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:26,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash -207651625, now seen corresponding path program 1 times [2023-12-22 03:35:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:26,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490866084] [2023-12-22 03:35:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:26,544 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 03:35:26,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:26,545 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 03:35:26,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 03:35:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:26,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:26,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-12-22 03:35:26,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:26,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:26,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490866084] [2023-12-22 03:35:26,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490866084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:26,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:26,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:26,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015742975] [2023-12-22 03:35:26,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:26,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:26,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:26,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:26,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:26,742 INFO L87 Difference]: Start difference. First operand 111760 states and 129312 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 03:35:28,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:28,576 INFO L93 Difference]: Finished difference Result 267803 states and 312649 transitions. [2023-12-22 03:35:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:28,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 375 [2023-12-22 03:35:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:28,790 INFO L225 Difference]: With dead ends: 267803 [2023-12-22 03:35:28,790 INFO L226 Difference]: Without dead ends: 156297 [2023-12-22 03:35:28,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 373 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 03:35:28,856 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 225 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:28,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 271 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:35:29,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156297 states. [2023-12-22 03:35:30,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156297 to 144236. [2023-12-22 03:35:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144236 states, 144235 states have (on average 1.1737581030956425) internal successors, (169297), 144235 states have internal predecessors, (169297), 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 03:35:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144236 states to 144236 states and 169297 transitions. [2023-12-22 03:35:31,250 INFO L78 Accepts]: Start accepts. Automaton has 144236 states and 169297 transitions. Word has length 375 [2023-12-22 03:35:31,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:31,251 INFO L495 AbstractCegarLoop]: Abstraction has 144236 states and 169297 transitions. [2023-12-22 03:35:31,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 03:35:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 144236 states and 169297 transitions. [2023-12-22 03:35:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-12-22 03:35:31,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:31,310 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:31,315 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 03:35:31,510 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 03:35:31,511 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:31,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:31,511 INFO L85 PathProgramCache]: Analyzing trace with hash 981862335, now seen corresponding path program 1 times [2023-12-22 03:35:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:31,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771078134] [2023-12-22 03:35:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:31,514 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 03:35:31,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:31,515 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 03:35:31,516 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 03:35:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:31,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:31,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-12-22 03:35:31,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:31,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:31,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771078134] [2023-12-22 03:35:31,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771078134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:31,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:31,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:31,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121945597] [2023-12-22 03:35:31,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:31,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:35:31,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:31,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:35:31,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:35:31,851 INFO L87 Difference]: Start difference. First operand 144236 states and 169297 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 03:35:34,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:34,175 INFO L93 Difference]: Finished difference Result 297843 states and 348869 transitions. [2023-12-22 03:35:34,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:35:34,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 381 [2023-12-22 03:35:34,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:34,392 INFO L225 Difference]: With dead ends: 297843 [2023-12-22 03:35:34,392 INFO L226 Difference]: Without dead ends: 153861 [2023-12-22 03:35:34,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 378 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 03:35:34,468 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 331 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:34,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 242 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 03:35:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153861 states. [2023-12-22 03:35:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153861 to 152153. [2023-12-22 03:35:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152153 states, 152152 states have (on average 1.1487591356012408) internal successors, (174786), 152152 states have internal predecessors, (174786), 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 03:35:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152153 states to 152153 states and 174786 transitions. [2023-12-22 03:35:36,791 INFO L78 Accepts]: Start accepts. Automaton has 152153 states and 174786 transitions. Word has length 381 [2023-12-22 03:35:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:36,791 INFO L495 AbstractCegarLoop]: Abstraction has 152153 states and 174786 transitions. [2023-12-22 03:35:36,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 03:35:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 152153 states and 174786 transitions. [2023-12-22 03:35:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-22 03:35:36,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:36,850 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:36,853 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 03:35:37,050 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 03:35:37,051 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:37,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash 777744725, now seen corresponding path program 1 times [2023-12-22 03:35:37,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:37,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315771327] [2023-12-22 03:35:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:37,054 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 03:35:37,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:37,055 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 03:35:37,056 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 03:35:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:37,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:35:37,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-12-22 03:35:37,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:37,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315771327] [2023-12-22 03:35:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315771327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:37,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:37,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:37,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459600606] [2023-12-22 03:35:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:37,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:37,508 INFO L87 Difference]: Start difference. First operand 152153 states and 174786 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 03:35:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:39,299 INFO L93 Difference]: Finished difference Result 321728 states and 371801 transitions. [2023-12-22 03:35:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:35:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 387 [2023-12-22 03:35:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:39,530 INFO L225 Difference]: With dead ends: 321728 [2023-12-22 03:35:39,531 INFO L226 Difference]: Without dead ends: 169829 [2023-12-22 03:35:39,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 385 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 03:35:39,610 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 240 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:39,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 266 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:35:39,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169829 states. [2023-12-22 03:35:41,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169829 to 169817. [2023-12-22 03:35:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169817 states, 169816 states have (on average 1.1481368068968767) internal successors, (194972), 169816 states have internal predecessors, (194972), 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 03:35:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169817 states to 169817 states and 194972 transitions. [2023-12-22 03:35:42,218 INFO L78 Accepts]: Start accepts. Automaton has 169817 states and 194972 transitions. Word has length 387 [2023-12-22 03:35:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:42,219 INFO L495 AbstractCegarLoop]: Abstraction has 169817 states and 194972 transitions. [2023-12-22 03:35:42,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 03:35:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 169817 states and 194972 transitions. [2023-12-22 03:35:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-22 03:35:42,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:42,308 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:42,316 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 03:35:42,512 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 03:35:42,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:42,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:42,513 INFO L85 PathProgramCache]: Analyzing trace with hash -795852958, now seen corresponding path program 1 times [2023-12-22 03:35:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:42,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712059511] [2023-12-22 03:35:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:42,517 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 03:35:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:42,518 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 03:35:42,552 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 03:35:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:42,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:35:42,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-22 03:35:43,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:43,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712059511] [2023-12-22 03:35:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712059511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:43,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:35:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693596013] [2023-12-22 03:35:43,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:43,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:35:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:43,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:35:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:35:43,567 INFO L87 Difference]: Start difference. First operand 169817 states and 194972 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 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 03:35:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:35:47,871 INFO L93 Difference]: Finished difference Result 683705 states and 783480 transitions. [2023-12-22 03:35:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:35:47,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 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 389 [2023-12-22 03:35:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:35:48,787 INFO L225 Difference]: With dead ends: 683705 [2023-12-22 03:35:48,787 INFO L226 Difference]: Without dead ends: 511097 [2023-12-22 03:35:48,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:35:48,921 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 917 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:35:48,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 647 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 03:35:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511097 states. [2023-12-22 03:35:55,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511097 to 505140. [2023-12-22 03:35:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505140 states, 505139 states have (on average 1.1452709056319152) internal successors, (578521), 505139 states have internal predecessors, (578521), 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 03:35:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505140 states to 505140 states and 578521 transitions. [2023-12-22 03:35:56,964 INFO L78 Accepts]: Start accepts. Automaton has 505140 states and 578521 transitions. Word has length 389 [2023-12-22 03:35:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:35:56,964 INFO L495 AbstractCegarLoop]: Abstraction has 505140 states and 578521 transitions. [2023-12-22 03:35:56,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 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 03:35:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 505140 states and 578521 transitions. [2023-12-22 03:35:57,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-22 03:35:57,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:35:57,583 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:35:57,588 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 03:35:57,786 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 03:35:57,787 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:35:57,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:35:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash 576698163, now seen corresponding path program 1 times [2023-12-22 03:35:57,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:35:57,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239719607] [2023-12-22 03:35:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:35:57,791 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 03:35:57,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:35:57,793 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 03:35:57,796 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 03:35:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:35:58,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:35:58,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:35:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-22 03:35:58,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:35:58,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:35:58,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239719607] [2023-12-22 03:35:58,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239719607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:35:58,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:35:58,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:35:58,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841277466] [2023-12-22 03:35:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:35:58,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:35:58,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:35:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:35:58,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:35:58,256 INFO L87 Difference]: Start difference. First operand 505140 states and 578521 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 03:36:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:36:03,425 INFO L93 Difference]: Finished difference Result 1060776 states and 1223472 transitions. [2023-12-22 03:36:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:36:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 395 [2023-12-22 03:36:03,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:36:04,793 INFO L225 Difference]: With dead ends: 1060776 [2023-12-22 03:36:04,793 INFO L226 Difference]: Without dead ends: 555890 [2023-12-22 03:36:05,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 393 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 03:36:05,012 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 157 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:36:05,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 218 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 03:36:05,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555890 states. [2023-12-22 03:36:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555890 to 555890. [2023-12-22 03:36:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555890 states, 555889 states have (on average 1.123078528267334) internal successors, (624307), 555889 states have internal predecessors, (624307), 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 03:36:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555890 states to 555890 states and 624307 transitions. [2023-12-22 03:36:13,802 INFO L78 Accepts]: Start accepts. Automaton has 555890 states and 624307 transitions. Word has length 395 [2023-12-22 03:36:13,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:36:13,802 INFO L495 AbstractCegarLoop]: Abstraction has 555890 states and 624307 transitions. [2023-12-22 03:36:13,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 03:36:13,803 INFO L276 IsEmpty]: Start isEmpty. Operand 555890 states and 624307 transitions. [2023-12-22 03:36:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-22 03:36:13,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:36:13,893 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:13,902 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 03:36:14,101 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 03:36:14,101 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:36:14,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:36:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash 762711961, now seen corresponding path program 1 times [2023-12-22 03:36:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:36:14,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999220930] [2023-12-22 03:36:14,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:36:14,104 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 03:36:14,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:36:14,106 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 03:36:14,110 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 03:36:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:36:14,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:36:14,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:36:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-22 03:36:14,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:36:14,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:36:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999220930] [2023-12-22 03:36:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999220930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:36:14,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:36:14,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:36:14,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585295585] [2023-12-22 03:36:14,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:36:14,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:36:14,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:36:14,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:36:14,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:36:14,915 INFO L87 Difference]: Start difference. First operand 555890 states and 624307 transitions. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 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 03:36:25,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:36:25,770 INFO L93 Difference]: Finished difference Result 1983766 states and 2238437 transitions. [2023-12-22 03:36:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:36:25,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 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 412 [2023-12-22 03:36:25,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:36:31,431 INFO L225 Difference]: With dead ends: 1983766 [2023-12-22 03:36:31,432 INFO L226 Difference]: Without dead ends: 1428130 [2023-12-22 03:36:32,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:36:32,057 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1124 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:36:32,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 621 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 03:36:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428130 states. [2023-12-22 03:36:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428130 to 1427609. [2023-12-22 03:36:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427609 states, 1427608 states have (on average 1.1284526284526284) internal successors, (1610988), 1427608 states have internal predecessors, (1610988), 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 03:37:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427609 states to 1427609 states and 1610988 transitions. [2023-12-22 03:37:03,123 INFO L78 Accepts]: Start accepts. Automaton has 1427609 states and 1610988 transitions. Word has length 412 [2023-12-22 03:37:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:37:03,123 INFO L495 AbstractCegarLoop]: Abstraction has 1427609 states and 1610988 transitions. [2023-12-22 03:37:03,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 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 03:37:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1427609 states and 1610988 transitions.