/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_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:25:50,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:25:50,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:25:50,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:25:50,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:25:50,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:25:50,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:25:50,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:25:50,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:25:50,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:25:50,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:25:50,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:25:50,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:25:50,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:25:50,112 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:25:50,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:25:50,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:25:50,113 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:25:50,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:25:50,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:25:50,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:25:50,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:25:50,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:25:50,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:25:50,116 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:25:50,116 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:25:50,116 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:25:50,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:25:50,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:25:50,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:25:50,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:25:50,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:25:50,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:25:50,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:25:50,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:25:50,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:25:50,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:25:50,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:25:50,119 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:25:50,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:25:50,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:25:50,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:25:50,120 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:25:50,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:25:50,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:25:50,120 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:25:50,120 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:25:50,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:25:50,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:25:50,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:25:50,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:25:50,338 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:25:50,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label13.c [2023-12-16 08:25:51,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:25:51,624 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:25:51,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label13.c [2023-12-16 08:25:51,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8de7e3da/cf284d3d74164535ad994fdec625ee01/FLAGb90ce178a [2023-12-16 08:25:51,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8de7e3da/cf284d3d74164535ad994fdec625ee01 [2023-12-16 08:25:51,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:25:51,656 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:25:51,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:25:51,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:25:51,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:25:51,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:25:51" (1/1) ... [2023-12-16 08:25:51,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324279bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:51, skipping insertion in model container [2023-12-16 08:25:51,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:25:51" (1/1) ... [2023-12-16 08:25:51,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:25:52,136 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_label13.c[55139,55152] [2023-12-16 08:25:52,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:25:52,179 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:25:52,303 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_label13.c[55139,55152] [2023-12-16 08:25:52,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:25:52,331 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:25:52,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52 WrapperNode [2023-12-16 08:25:52,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:25:52,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:25:52,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:25:52,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:25:52,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,508 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:25:52,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:25:52,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:25:52,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:25:52,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:25:52,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,559 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:25:52,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:25:52,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:25:52,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:25:52,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:25:52,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (1/1) ... [2023-12-16 08:25:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:25:52,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:25:52,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:25:52,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:25:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:25:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:25:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:25:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:25:52,795 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:25:52,797 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:25:54,230 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:25:54,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:25:54,287 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:25:54,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:25:54 BoogieIcfgContainer [2023-12-16 08:25:54,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:25:54,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:25:54,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:25:54,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:25:54,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:25:51" (1/3) ... [2023-12-16 08:25:54,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bb54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:25:54, skipping insertion in model container [2023-12-16 08:25:54,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:25:52" (2/3) ... [2023-12-16 08:25:54,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bb54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:25:54, skipping insertion in model container [2023-12-16 08:25:54,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:25:54" (3/3) ... [2023-12-16 08:25:54,293 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label13.c [2023-12-16 08:25:54,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:25:54,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:25:54,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:25:54,340 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;@15692f3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:25:54,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:25:54,345 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) [2023-12-16 08:25:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 08:25:54,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:25:54,354 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] [2023-12-16 08:25:54,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:25:54,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:25:54,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1621815591, now seen corresponding path program 1 times [2023-12-16 08:25:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:25:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644104163] [2023-12-16 08:25:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:25:54,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:25:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:25:54,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:25:54,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:25:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:25:54,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:25:54,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:25:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:25:54,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:25:54,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:25:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644104163] [2023-12-16 08:25:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644104163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:25:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:25:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:25:54,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615610261] [2023-12-16 08:25:54,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:25:54,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:25:54,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:25:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:25:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:25:54,607 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 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2023-12-16 08:25:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:25:54,640 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 08:25:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:25:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2023-12-16 08:25:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:25:54,649 INFO L225 Difference]: With dead ends: 479 [2023-12-16 08:25:54,650 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 08:25:54,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:25:54,654 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 [2023-12-16 08:25:54,655 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] [2023-12-16 08:25:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 08:25:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 08:25:54,682 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) [2023-12-16 08:25:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 08:25:54,685 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 154 [2023-12-16 08:25:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:25:54,686 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 08:25:54,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2023-12-16 08:25:54,686 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 08:25:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 08:25:54,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:25:54,687 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] [2023-12-16 08:25:54,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 08:25:54,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:25:54,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:25:54,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:25:54,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1906010682, now seen corresponding path program 1 times [2023-12-16 08:25:54,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:25:54,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847489926] [2023-12-16 08:25:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:25:54,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:25:54,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:25:54,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:25:54,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:25:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:25:55,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:25:55,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:26:11,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:11,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847489926] [2023-12-16 08:26:11,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847489926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:11,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:11,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:26:11,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664144642] [2023-12-16 08:26:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:11,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:26:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:11,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:26:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:26:11,504 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 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) [2023-12-16 08:26:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:18,053 INFO L93 Difference]: Finished difference Result 999 states and 1699 transitions. [2023-12-16 08:26:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 08:26:18,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 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 154 [2023-12-16 08:26:18,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:18,059 INFO L225 Difference]: With dead ends: 999 [2023-12-16 08:26:18,059 INFO L226 Difference]: Without dead ends: 762 [2023-12-16 08:26:18,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-16 08:26:18,061 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1337 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4740 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 4740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:18,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 366 Invalid, 4970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 4740 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-16 08:26:18,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-12-16 08:26:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 759. [2023-12-16 08:26:18,081 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) [2023-12-16 08:26:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 976 transitions. [2023-12-16 08:26:18,083 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 976 transitions. Word has length 154 [2023-12-16 08:26:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:18,084 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 976 transitions. [2023-12-16 08:26:18,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 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) [2023-12-16 08:26:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 976 transitions. [2023-12-16 08:26:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:26:18,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:18,087 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] [2023-12-16 08:26:18,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 08:26:18,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:18,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:18,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1866531029, now seen corresponding path program 1 times [2023-12-16 08:26:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:18,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607801095] [2023-12-16 08:26:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:18,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:18,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:18,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:18,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:26:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:18,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:26:18,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:26:30,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:30,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:30,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607801095] [2023-12-16 08:26:30,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607801095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:30,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:30,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:26:30,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359442880] [2023-12-16 08:26:30,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:30,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:26:30,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:26:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:26:30,339 INFO L87 Difference]: Start difference. First operand 759 states and 976 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 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) [2023-12-16 08:26:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:33,219 INFO L93 Difference]: Finished difference Result 1342 states and 1906 transitions. [2023-12-16 08:26:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:26:33,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 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 161 [2023-12-16 08:26:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:33,232 INFO L225 Difference]: With dead ends: 1342 [2023-12-16 08:26:33,232 INFO L226 Difference]: Without dead ends: 900 [2023-12-16 08:26:33,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-16 08:26:33,234 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 480 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 2906 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:33,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 303 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 08:26:33,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-12-16 08:26:33,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 900. [2023-12-16 08:26:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.2491657397107898) internal successors, (1123), 899 states have internal predecessors, (1123), 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) [2023-12-16 08:26:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1123 transitions. [2023-12-16 08:26:33,262 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1123 transitions. Word has length 161 [2023-12-16 08:26:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:33,262 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1123 transitions. [2023-12-16 08:26:33,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 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) [2023-12-16 08:26:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1123 transitions. [2023-12-16 08:26:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 08:26:33,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:33,265 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] [2023-12-16 08:26:33,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 08:26:33,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:33,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:33,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash 854093270, now seen corresponding path program 1 times [2023-12-16 08:26:33,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:33,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170400190] [2023-12-16 08:26:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:33,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:33,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:33,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:26:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:33,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:33,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:26:33,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:33,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:33,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170400190] [2023-12-16 08:26:33,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170400190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:33,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:33,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:33,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28072459] [2023-12-16 08:26:33,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:33,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:33,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:33,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:33,716 INFO L87 Difference]: Start difference. First operand 900 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-16 08:26:34,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:34,649 INFO L93 Difference]: Finished difference Result 1762 states and 2394 transitions. [2023-12-16 08:26:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:34,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 169 [2023-12-16 08:26:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:34,654 INFO L225 Difference]: With dead ends: 1762 [2023-12-16 08:26:34,654 INFO L226 Difference]: Without dead ends: 1320 [2023-12-16 08:26:34,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:34,658 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 112 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:34,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 337 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:26:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2023-12-16 08:26:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1315. [2023-12-16 08:26:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1314 states have (on average 1.273972602739726) internal successors, (1674), 1314 states have internal predecessors, (1674), 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) [2023-12-16 08:26:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1674 transitions. [2023-12-16 08:26:34,681 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1674 transitions. Word has length 169 [2023-12-16 08:26:34,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:34,681 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 1674 transitions. [2023-12-16 08:26:34,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-16 08:26:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1674 transitions. [2023-12-16 08:26:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 08:26:34,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:34,684 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-12-16 08:26:34,689 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 (5)] Ended with exit code 0 [2023-12-16 08:26:34,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:34,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:34,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:34,887 INFO L85 PathProgramCache]: Analyzing trace with hash 243688074, now seen corresponding path program 1 times [2023-12-16 08:26:34,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:34,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7614931] [2023-12-16 08:26:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:34,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:34,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:34,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:34,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:26:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:35,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:35,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 08:26:35,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:35,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:35,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7614931] [2023-12-16 08:26:35,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7614931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:35,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:35,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:35,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766854705] [2023-12-16 08:26:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:35,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:35,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:35,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:35,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:35,203 INFO L87 Difference]: Start difference. First operand 1315 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2023-12-16 08:26:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:36,139 INFO L93 Difference]: Finished difference Result 2989 states and 4024 transitions. [2023-12-16 08:26:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 175 [2023-12-16 08:26:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:36,144 INFO L225 Difference]: With dead ends: 2989 [2023-12-16 08:26:36,145 INFO L226 Difference]: Without dead ends: 2132 [2023-12-16 08:26:36,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:36,146 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 97 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:36,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 395 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:26:36,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2023-12-16 08:26:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2130. [2023-12-16 08:26:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.2883983090652888) internal successors, (2743), 2129 states have internal predecessors, (2743), 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) [2023-12-16 08:26:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2743 transitions. [2023-12-16 08:26:36,171 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2743 transitions. Word has length 175 [2023-12-16 08:26:36,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:36,171 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 2743 transitions. [2023-12-16 08:26:36,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2023-12-16 08:26:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2743 transitions. [2023-12-16 08:26:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 08:26:36,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:36,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:36,183 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 (6)] Ended with exit code 0 [2023-12-16 08:26:36,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:36,384 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:36,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:36,384 INFO L85 PathProgramCache]: Analyzing trace with hash 672186400, now seen corresponding path program 1 times [2023-12-16 08:26:36,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:36,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183847284] [2023-12-16 08:26:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:36,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:36,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:36,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:36,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:26:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:36,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:36,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:26:36,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:36,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:36,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183847284] [2023-12-16 08:26:36,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183847284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:36,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:36,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:26:36,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762818587] [2023-12-16 08:26:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:36,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:36,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:36,553 INFO L87 Difference]: Start difference. First operand 2130 states and 2743 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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) [2023-12-16 08:26:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:37,436 INFO L93 Difference]: Finished difference Result 4412 states and 5914 transitions. [2023-12-16 08:26:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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 182 [2023-12-16 08:26:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:37,443 INFO L225 Difference]: With dead ends: 4412 [2023-12-16 08:26:37,443 INFO L226 Difference]: Without dead ends: 2537 [2023-12-16 08:26:37,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:37,445 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 187 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:37,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 214 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:26:37,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-12-16 08:26:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2536. [2023-12-16 08:26:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2535 states have (on average 1.2662721893491125) internal successors, (3210), 2535 states have internal predecessors, (3210), 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) [2023-12-16 08:26:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3210 transitions. [2023-12-16 08:26:37,474 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3210 transitions. Word has length 182 [2023-12-16 08:26:37,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:37,474 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 3210 transitions. [2023-12-16 08:26:37,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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) [2023-12-16 08:26:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3210 transitions. [2023-12-16 08:26:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 08:26:37,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:37,477 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2023-12-16 08:26:37,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:37,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:37,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:37,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:37,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1525202883, now seen corresponding path program 1 times [2023-12-16 08:26:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250061088] [2023-12-16 08:26:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:37,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:37,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:37,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:26:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:37,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:37,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:26:37,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:37,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:37,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250061088] [2023-12-16 08:26:37,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250061088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:37,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:37,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:37,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911660946] [2023-12-16 08:26:37,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:37,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:37,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:37,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:37,841 INFO L87 Difference]: Start difference. First operand 2536 states and 3210 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-16 08:26:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:38,682 INFO L93 Difference]: Finished difference Result 6450 states and 8360 transitions. [2023-12-16 08:26:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:38,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 188 [2023-12-16 08:26:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:38,694 INFO L225 Difference]: With dead ends: 6450 [2023-12-16 08:26:38,694 INFO L226 Difference]: Without dead ends: 4169 [2023-12-16 08:26:38,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:38,699 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 250 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:38,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 301 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2023-12-16 08:26:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 4168. [2023-12-16 08:26:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4168 states, 4167 states have (on average 1.2428605711543077) internal successors, (5179), 4167 states have internal predecessors, (5179), 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) [2023-12-16 08:26:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4168 states to 4168 states and 5179 transitions. [2023-12-16 08:26:38,756 INFO L78 Accepts]: Start accepts. Automaton has 4168 states and 5179 transitions. Word has length 188 [2023-12-16 08:26:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:38,756 INFO L495 AbstractCegarLoop]: Abstraction has 4168 states and 5179 transitions. [2023-12-16 08:26:38,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-16 08:26:38,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4168 states and 5179 transitions. [2023-12-16 08:26:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-16 08:26:38,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:38,760 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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] [2023-12-16 08:26:38,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 08:26:38,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:38,963 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:38,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash 910755471, now seen corresponding path program 1 times [2023-12-16 08:26:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:38,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303201201] [2023-12-16 08:26:38,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:38,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:38,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:38,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:39,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:26:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:39,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:39,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 08:26:39,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:39,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:39,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303201201] [2023-12-16 08:26:39,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303201201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:39,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:39,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:39,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203272498] [2023-12-16 08:26:39,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:39,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:39,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:39,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:39,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:39,151 INFO L87 Difference]: Start difference. First operand 4168 states and 5179 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-16 08:26:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:39,965 INFO L93 Difference]: Finished difference Result 9302 states and 11786 transitions. [2023-12-16 08:26:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:39,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 194 [2023-12-16 08:26:39,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:39,976 INFO L225 Difference]: With dead ends: 9302 [2023-12-16 08:26:39,976 INFO L226 Difference]: Without dead ends: 5389 [2023-12-16 08:26:39,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:39,979 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 218 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:39,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 329 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2023-12-16 08:26:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 5386. [2023-12-16 08:26:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 1.2220984215413184) internal successors, (6581), 5385 states have internal predecessors, (6581), 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) [2023-12-16 08:26:40,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 6581 transitions. [2023-12-16 08:26:40,034 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 6581 transitions. Word has length 194 [2023-12-16 08:26:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:40,035 INFO L495 AbstractCegarLoop]: Abstraction has 5386 states and 6581 transitions. [2023-12-16 08:26:40,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-16 08:26:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 6581 transitions. [2023-12-16 08:26:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 08:26:40,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:40,040 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:26:40,057 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 (9)] Ended with exit code 0 [2023-12-16 08:26:40,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:40,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:40,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash 139157553, now seen corresponding path program 1 times [2023-12-16 08:26:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839678851] [2023-12-16 08:26:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:40,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:40,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:40,256 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:40,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 08:26:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:40,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:40,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 08:26:40,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:40,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839678851] [2023-12-16 08:26:40,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839678851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:40,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:40,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:26:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655133329] [2023-12-16 08:26:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:40,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:40,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:40,458 INFO L87 Difference]: Start difference. First operand 5386 states and 6581 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-12-16 08:26:41,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:41,028 INFO L93 Difference]: Finished difference Result 10491 states and 12862 transitions. [2023-12-16 08:26:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:41,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 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 214 [2023-12-16 08:26:41,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:41,039 INFO L225 Difference]: With dead ends: 10491 [2023-12-16 08:26:41,039 INFO L226 Difference]: Without dead ends: 5360 [2023-12-16 08:26:41,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:41,045 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 [2023-12-16 08:26:41,045 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] [2023-12-16 08:26:41,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2023-12-16 08:26:41,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5360. [2023-12-16 08:26:41,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 1.1826833364433662) internal successors, (6338), 5359 states have internal predecessors, (6338), 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) [2023-12-16 08:26:41,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 6338 transitions. [2023-12-16 08:26:41,108 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 6338 transitions. Word has length 214 [2023-12-16 08:26:41,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:41,108 INFO L495 AbstractCegarLoop]: Abstraction has 5360 states and 6338 transitions. [2023-12-16 08:26:41,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-12-16 08:26:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 6338 transitions. [2023-12-16 08:26:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-16 08:26:41,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:41,116 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:41,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:41,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:41,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:41,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1905573640, now seen corresponding path program 1 times [2023-12-16 08:26:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:41,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634392953] [2023-12-16 08:26:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:41,321 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 [2023-12-16 08:26:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:41,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:41,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:26:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:41,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:41,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:26:41,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:41,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:41,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634392953] [2023-12-16 08:26:41,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634392953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:41,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:41,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:41,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999825761] [2023-12-16 08:26:41,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:41,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:41,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:41,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:41,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:41,597 INFO L87 Difference]: Start difference. First operand 5360 states and 6338 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-12-16 08:26:42,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:42,458 INFO L93 Difference]: Finished difference Result 13314 states and 16015 transitions. [2023-12-16 08:26:42,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:42,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 223 [2023-12-16 08:26:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:42,475 INFO L225 Difference]: With dead ends: 13314 [2023-12-16 08:26:42,475 INFO L226 Difference]: Without dead ends: 8209 [2023-12-16 08:26:42,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:42,479 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 167 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:42,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 272 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8209 states. [2023-12-16 08:26:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8209 to 7390. [2023-12-16 08:26:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 7389 states have (on average 1.1793206117201245) internal successors, (8714), 7389 states have internal predecessors, (8714), 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) [2023-12-16 08:26:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 8714 transitions. [2023-12-16 08:26:42,563 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 8714 transitions. Word has length 223 [2023-12-16 08:26:42,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:42,563 INFO L495 AbstractCegarLoop]: Abstraction has 7390 states and 8714 transitions. [2023-12-16 08:26:42,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-12-16 08:26:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 8714 transitions. [2023-12-16 08:26:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-16 08:26:42,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:42,575 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:42,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:42,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:42,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:42,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash -525044828, now seen corresponding path program 1 times [2023-12-16 08:26:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168571241] [2023-12-16 08:26:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:42,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:42,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:42,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 08:26:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:42,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:42,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 08:26:43,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:43,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:43,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168571241] [2023-12-16 08:26:43,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168571241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:43,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:43,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778093922] [2023-12-16 08:26:43,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:43,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:26:43,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:43,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:26:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:43,051 INFO L87 Difference]: Start difference. First operand 7390 states and 8714 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) [2023-12-16 08:26:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:44,063 INFO L93 Difference]: Finished difference Result 17372 states and 20755 transitions. [2023-12-16 08:26:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:26:44,064 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 235 [2023-12-16 08:26:44,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:44,077 INFO L225 Difference]: With dead ends: 17372 [2023-12-16 08:26:44,077 INFO L226 Difference]: Without dead ends: 10237 [2023-12-16 08:26:44,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:44,083 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 436 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:44,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 48 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:26:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2023-12-16 08:26:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 10232. [2023-12-16 08:26:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10232 states, 10231 states have (on average 1.1775974978008015) internal successors, (12048), 10231 states have internal predecessors, (12048), 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) [2023-12-16 08:26:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10232 states to 10232 states and 12048 transitions. [2023-12-16 08:26:44,174 INFO L78 Accepts]: Start accepts. Automaton has 10232 states and 12048 transitions. Word has length 235 [2023-12-16 08:26:44,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:44,174 INFO L495 AbstractCegarLoop]: Abstraction has 10232 states and 12048 transitions. [2023-12-16 08:26:44,175 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) [2023-12-16 08:26:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10232 states and 12048 transitions. [2023-12-16 08:26:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 08:26:44,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:44,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:44,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:44,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:44,384 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:44,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1775073261, now seen corresponding path program 1 times [2023-12-16 08:26:44,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:44,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182138620] [2023-12-16 08:26:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:44,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:44,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:44,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:44,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 08:26:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:44,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:44,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:26:44,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:44,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:44,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182138620] [2023-12-16 08:26:44,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182138620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:44,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:44,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864625518] [2023-12-16 08:26:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:44,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:26:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:26:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:44,686 INFO L87 Difference]: Start difference. First operand 10232 states and 12048 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-12-16 08:26:46,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:46,059 INFO L93 Difference]: Finished difference Result 24077 states and 28600 transitions. [2023-12-16 08:26:46,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:26:46,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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 239 [2023-12-16 08:26:46,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:46,080 INFO L225 Difference]: With dead ends: 24077 [2023-12-16 08:26:46,080 INFO L226 Difference]: Without dead ends: 14100 [2023-12-16 08:26:46,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:46,089 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 470 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:46,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 116 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 08:26:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14100 states. [2023-12-16 08:26:46,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14100 to 13480. [2023-12-16 08:26:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13480 states, 13479 states have (on average 1.18614140514875) internal successors, (15988), 13479 states have internal predecessors, (15988), 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) [2023-12-16 08:26:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13480 states to 13480 states and 15988 transitions. [2023-12-16 08:26:46,285 INFO L78 Accepts]: Start accepts. Automaton has 13480 states and 15988 transitions. Word has length 239 [2023-12-16 08:26:46,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:46,285 INFO L495 AbstractCegarLoop]: Abstraction has 13480 states and 15988 transitions. [2023-12-16 08:26:46,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-12-16 08:26:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13480 states and 15988 transitions. [2023-12-16 08:26:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-16 08:26:46,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:46,295 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 08:26:46,300 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 [2023-12-16 08:26:46,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:46,498 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:46,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1474282444, now seen corresponding path program 1 times [2023-12-16 08:26:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:46,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100379781] [2023-12-16 08:26:46,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:46,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:46,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:46,501 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:46,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 08:26:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:46,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:46,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:26:46,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:46,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:46,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100379781] [2023-12-16 08:26:46,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100379781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:46,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:46,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:26:46,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008649116] [2023-12-16 08:26:46,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:46,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:46,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:46,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:46,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:46,937 INFO L87 Difference]: Start difference. First operand 13480 states and 15988 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 2 states have internal predecessors, (255), 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) [2023-12-16 08:26:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:47,800 INFO L93 Difference]: Finished difference Result 29145 states and 34698 transitions. [2023-12-16 08:26:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 2 states have internal predecessors, (255), 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 275 [2023-12-16 08:26:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:47,820 INFO L225 Difference]: With dead ends: 29145 [2023-12-16 08:26:47,820 INFO L226 Difference]: Without dead ends: 15920 [2023-12-16 08:26:47,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:47,833 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 119 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:47,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 215 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:47,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15920 states. [2023-12-16 08:26:47,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15920 to 15916. [2023-12-16 08:26:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15916 states, 15915 states have (on average 1.176185988061577) internal successors, (18719), 15915 states have internal predecessors, (18719), 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) [2023-12-16 08:26:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15916 states to 15916 states and 18719 transitions. [2023-12-16 08:26:47,992 INFO L78 Accepts]: Start accepts. Automaton has 15916 states and 18719 transitions. Word has length 275 [2023-12-16 08:26:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:47,992 INFO L495 AbstractCegarLoop]: Abstraction has 15916 states and 18719 transitions. [2023-12-16 08:26:47,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 2 states have internal predecessors, (255), 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) [2023-12-16 08:26:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15916 states and 18719 transitions. [2023-12-16 08:26:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-12-16 08:26:48,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:48,004 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 08:26:48,007 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 [2023-12-16 08:26:48,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:48,207 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:48,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash 924714013, now seen corresponding path program 1 times [2023-12-16 08:26:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:48,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725420055] [2023-12-16 08:26:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:48,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:48,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:48,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 08:26:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:48,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:26:48,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 08:26:48,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:48,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:48,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725420055] [2023-12-16 08:26:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725420055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:48,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:48,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:48,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143428943] [2023-12-16 08:26:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:48,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:48,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:48,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:48,422 INFO L87 Difference]: Start difference. First operand 15916 states and 18719 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-12-16 08:26:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:49,325 INFO L93 Difference]: Finished difference Result 36655 states and 43209 transitions. [2023-12-16 08:26:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:49,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 296 [2023-12-16 08:26:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:49,396 INFO L225 Difference]: With dead ends: 36655 [2023-12-16 08:26:49,396 INFO L226 Difference]: Without dead ends: 20994 [2023-12-16 08:26:49,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:49,411 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 217 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:49,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 264 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:49,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20994 states. [2023-12-16 08:26:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20994 to 19773. [2023-12-16 08:26:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19773 states, 19772 states have (on average 1.1502629981792434) internal successors, (22743), 19772 states have internal predecessors, (22743), 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) [2023-12-16 08:26:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19773 states to 19773 states and 22743 transitions. [2023-12-16 08:26:49,597 INFO L78 Accepts]: Start accepts. Automaton has 19773 states and 22743 transitions. Word has length 296 [2023-12-16 08:26:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:49,597 INFO L495 AbstractCegarLoop]: Abstraction has 19773 states and 22743 transitions. [2023-12-16 08:26:49,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-12-16 08:26:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 19773 states and 22743 transitions. [2023-12-16 08:26:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-16 08:26:49,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:49,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 08:26:49,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:49,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:49,815 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:49,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash -969178792, now seen corresponding path program 1 times [2023-12-16 08:26:49,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:49,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267276211] [2023-12-16 08:26:49,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:49,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:49,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:49,818 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:49,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 08:26:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:49,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:49,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 08:26:50,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:50,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267276211] [2023-12-16 08:26:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267276211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112734266] [2023-12-16 08:26:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:50,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:26:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:26:50,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:26:50,009 INFO L87 Difference]: Start difference. First operand 19773 states and 22743 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2023-12-16 08:26:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:50,876 INFO L93 Difference]: Finished difference Result 41124 states and 47203 transitions. [2023-12-16 08:26:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:26:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 [2023-12-16 08:26:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:50,898 INFO L225 Difference]: With dead ends: 41124 [2023-12-16 08:26:50,898 INFO L226 Difference]: Without dead ends: 20376 [2023-12-16 08:26:50,912 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 [2023-12-16 08:26:50,913 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 206 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:50,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 291 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20376 states. [2023-12-16 08:26:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20376 to 19764. [2023-12-16 08:26:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19764 states, 19763 states have (on average 1.0861711278652026) internal successors, (21466), 19763 states have internal predecessors, (21466), 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) [2023-12-16 08:26:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19764 states to 19764 states and 21466 transitions. [2023-12-16 08:26:51,269 INFO L78 Accepts]: Start accepts. Automaton has 19764 states and 21466 transitions. Word has length 315 [2023-12-16 08:26:51,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:51,270 INFO L495 AbstractCegarLoop]: Abstraction has 19764 states and 21466 transitions. [2023-12-16 08:26:51,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2023-12-16 08:26:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 19764 states and 21466 transitions. [2023-12-16 08:26:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 08:26:51,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:51,282 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:51,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 08:26:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:51,485 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:51,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -925227387, now seen corresponding path program 1 times [2023-12-16 08:26:51,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:51,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998644499] [2023-12-16 08:26:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:51,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:51,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:51,491 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:51,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 08:26:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:51,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:26:51,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-16 08:26:51,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:51,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:51,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998644499] [2023-12-16 08:26:51,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998644499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:51,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:51,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:51,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771720303] [2023-12-16 08:26:51,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:51,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:26:51,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:51,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:26:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:51,904 INFO L87 Difference]: Start difference. First operand 19764 states and 21466 transitions. Second operand has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 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) [2023-12-16 08:26:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:52,889 INFO L93 Difference]: Finished difference Result 56368 states and 61073 transitions. [2023-12-16 08:26:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:26:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 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 336 [2023-12-16 08:26:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:52,923 INFO L225 Difference]: With dead ends: 56368 [2023-12-16 08:26:52,923 INFO L226 Difference]: Without dead ends: 36847 [2023-12-16 08:26:52,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:52,961 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 385 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:52,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 438 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:26:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36847 states. [2023-12-16 08:26:53,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36847 to 36436. [2023-12-16 08:26:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36436 states, 36435 states have (on average 1.0793742280773981) internal successors, (39327), 36435 states have internal predecessors, (39327), 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) [2023-12-16 08:26:53,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36436 states to 36436 states and 39327 transitions. [2023-12-16 08:26:53,518 INFO L78 Accepts]: Start accepts. Automaton has 36436 states and 39327 transitions. Word has length 336 [2023-12-16 08:26:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:53,519 INFO L495 AbstractCegarLoop]: Abstraction has 36436 states and 39327 transitions. [2023-12-16 08:26:53,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 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) [2023-12-16 08:26:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 36436 states and 39327 transitions. [2023-12-16 08:26:53,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-12-16 08:26:53,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:53,538 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, 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, 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] [2023-12-16 08:26:53,541 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 (17)] Ended with exit code 0 [2023-12-16 08:26:53,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:53,741 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:53,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash -774143146, now seen corresponding path program 1 times [2023-12-16 08:26:53,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:53,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946346469] [2023-12-16 08:26:53,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:53,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:53,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:53,745 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:53,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 08:26:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:53,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:26:53,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-16 08:26:54,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:54,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946346469] [2023-12-16 08:26:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946346469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:54,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:54,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029605740] [2023-12-16 08:26:54,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:54,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:26:54,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:26:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:54,232 INFO L87 Difference]: Start difference. First operand 36436 states and 39327 transitions. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 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) [2023-12-16 08:26:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:55,354 INFO L93 Difference]: Finished difference Result 75879 states and 81892 transitions. [2023-12-16 08:26:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:26:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 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 407 [2023-12-16 08:26:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:55,404 INFO L225 Difference]: With dead ends: 75879 [2023-12-16 08:26:55,404 INFO L226 Difference]: Without dead ends: 39280 [2023-12-16 08:26:55,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:55,425 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 379 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:55,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 394 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:26:55,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39280 states. [2023-12-16 08:26:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39280 to 38060. [2023-12-16 08:26:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38060 states, 38059 states have (on average 1.0663969100606951) internal successors, (40586), 38059 states have internal predecessors, (40586), 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) [2023-12-16 08:26:55,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38060 states to 38060 states and 40586 transitions. [2023-12-16 08:26:55,804 INFO L78 Accepts]: Start accepts. Automaton has 38060 states and 40586 transitions. Word has length 407 [2023-12-16 08:26:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:55,828 INFO L495 AbstractCegarLoop]: Abstraction has 38060 states and 40586 transitions. [2023-12-16 08:26:55,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 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) [2023-12-16 08:26:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 38060 states and 40586 transitions. [2023-12-16 08:26:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2023-12-16 08:26:55,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:55,863 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:55,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:56,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:56,067 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:56,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash -656087796, now seen corresponding path program 1 times [2023-12-16 08:26:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:56,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442430707] [2023-12-16 08:26:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:56,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:56,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:56,071 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:56,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 08:26:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:56,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:26:56,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-16 08:26:56,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:56,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:56,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442430707] [2023-12-16 08:26:56,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442430707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:56,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:56,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:26:56,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507850839] [2023-12-16 08:26:56,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:56,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:26:56,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:26:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:56,887 INFO L87 Difference]: Start difference. First operand 38060 states and 40586 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-12-16 08:26:58,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:58,200 INFO L93 Difference]: Finished difference Result 72446 states and 77380 transitions. [2023-12-16 08:26:58,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:26:58,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 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 410 [2023-12-16 08:26:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:58,351 INFO L225 Difference]: With dead ends: 72446 [2023-12-16 08:26:58,351 INFO L226 Difference]: Without dead ends: 34629 [2023-12-16 08:26:58,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:26:58,362 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 400 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:26:58,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 165 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:26:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34629 states. [2023-12-16 08:26:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34629 to 29939. [2023-12-16 08:26:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29939 states, 29938 states have (on average 1.0581535172690226) internal successors, (31679), 29938 states have internal predecessors, (31679), 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) [2023-12-16 08:26:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29939 states to 29939 states and 31679 transitions. [2023-12-16 08:26:58,647 INFO L78 Accepts]: Start accepts. Automaton has 29939 states and 31679 transitions. Word has length 410 [2023-12-16 08:26:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 29939 states and 31679 transitions. [2023-12-16 08:26:58,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-12-16 08:26:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 29939 states and 31679 transitions. [2023-12-16 08:26:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-16 08:26:58,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:58,660 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:26:58,663 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 (19)] Ended with exit code 0 [2023-12-16 08:26:58,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:58,864 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:58,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:58,864 INFO L85 PathProgramCache]: Analyzing trace with hash -610243927, now seen corresponding path program 1 times [2023-12-16 08:26:58,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:58,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878526320] [2023-12-16 08:26:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:26:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:58,868 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:26:58,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 08:26:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:59,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 08:26:59,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 08:27:01,116 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:27:01,118 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:27:01,118 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:27:01,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 08:27:01,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:27:01,320 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 413 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ATOM-1 context. [2023-12-16 08:27:01,325 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:27:01,326 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:27:01,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:27:01 BoogieIcfgContainer [2023-12-16 08:27:01,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:27:01,332 INFO L158 Benchmark]: Toolchain (without parser) took 69676.09ms. Allocated memory was 339.7MB in the beginning and 1.2GB in the end (delta: 846.2MB). Free memory was 287.1MB in the beginning and 436.2MB in the end (delta: -149.2MB). Peak memory consumption was 697.8MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,332 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 133.1MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:27:01,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.26ms. Allocated memory is still 339.7MB. Free memory was 287.1MB in the beginning and 219.5MB in the end (delta: 67.6MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 175.66ms. Allocated memory is still 339.7MB. Free memory was 219.5MB in the beginning and 300.2MB in the end (delta: -80.8MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,333 INFO L158 Benchmark]: Boogie Preprocessor took 140.27ms. Allocated memory is still 339.7MB. Free memory was 300.2MB in the beginning and 287.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,333 INFO L158 Benchmark]: RCFGBuilder took 1637.80ms. Allocated memory is still 339.7MB. Free memory was 287.1MB in the beginning and 279.3MB in the end (delta: 7.8MB). Peak memory consumption was 182.9MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,333 INFO L158 Benchmark]: TraceAbstraction took 67042.40ms. Allocated memory was 339.7MB in the beginning and 1.2GB in the end (delta: 846.2MB). Free memory was 278.8MB in the beginning and 436.2MB in the end (delta: -157.5MB). Peak memory consumption was 688.5MB. Max. memory is 8.0GB. [2023-12-16 08:27:01,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 133.1MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 675.26ms. Allocated memory is still 339.7MB. Free memory was 287.1MB in the beginning and 219.5MB in the end (delta: 67.6MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 175.66ms. Allocated memory is still 339.7MB. Free memory was 219.5MB in the beginning and 300.2MB in the end (delta: -80.8MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 140.27ms. Allocated memory is still 339.7MB. Free memory was 300.2MB in the beginning and 287.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1637.80ms. Allocated memory is still 339.7MB. Free memory was 287.1MB in the beginning and 279.3MB in the end (delta: 7.8MB). Peak memory consumption was 182.9MB. Max. memory is 8.0GB. * TraceAbstraction took 67042.40ms. Allocated memory was 339.7MB in the beginning and 1.2GB in the end (delta: 846.2MB). Free memory was 278.8MB in the beginning and 436.2MB in the end (delta: -157.5MB). Peak memory consumption was 688.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1510]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1510). Cancelled while NwaCegarLoop was analyzing trace of length 413 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.0s, OverallIterations: 19, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5781 SdHoareTripleChecker+Valid, 21.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5781 mSDsluCounter, 4869 SdHoareTripleChecker+Invalid, 18.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1036 mSDsCounter, 2230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16918 IncrementalHoareTripleChecker+Invalid, 19148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2230 mSolverCounterUnsat, 3833 mSDtfsCounter, 16918 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4319 GetRequests, 4273 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38060occurred in iteration=17, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 9617 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 30.7s InterpolantComputationTime, 4327 NumberOfCodeBlocks, 4327 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4309 ConstructedInterpolants, 0 QuantifiedInterpolants, 31749 SizeOfPredicates, 35 NumberOfNonLiveVariables, 6478 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 2413/2413 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown